fixed bug in single button handling causing broken tapes (EM engine)
[rocksndiamonds.git] / src / game_em / synchro_2.c
index 6c9cf8f0a00defc731b111b454c3d20a68664c03..8fc7ada1d9e91dcafebc7982380d7427d0d68d74 100644 (file)
  *
  * one giant switch statement to process everything.
  *
- * this whole thing is a major bottleneck. the compiler must use registers. compilers suck.
+ * this whole thing is a major bottleneck. the compiler must use registers.
+ * compilers suck.
  */
 
-#include "display.h"
-#include "tile.h"
-#include "level.h"
-#include "sample.h"
+#include "main_em.h"
 
 
-#if defined(TARGET_X11)
+#define RANDOM (random = random << 31 | random >> 1)
+
+static void set_nearest_player_xy(int x, int y, int *dx, int *dy)
+{
+  int distance, distance_shortest = EM_MAX_CAVE_WIDTH + EM_MAX_CAVE_HEIGHT;
+  int i;
+
+  /* default values if no players are alive anymore */
+  *dx = 0;
+  *dy = 0;
 
-extern unsigned int screen_x;
-extern unsigned int screen_y;
+  for (i = 0; i < MAX_PLAYERS; i++)
+  {
+    if (!ply[i].alive)
+      continue;
+
+    distance = ABS(ply[i].x - x) + ABS(ply[i].y - y);
+
+    if (distance < distance_shortest)
+    {
+      *dx = ply[i].x;
+      *dy = ply[i].y;
+
+      distance_shortest = distance;
+    }
+  }
+}
 
 void synchro_2(void)
 {
-       register unsigned int x = 0;
-       register unsigned int y = 1;
-       register unsigned long random = Random;
-       register unsigned short *cave_cache = Cave[y]; /* might be a win */
-       unsigned long score = 0;
-
-       unsigned int temp = 0;  /* initialized to make compilers happy */
-       unsigned int left = screen_x / TILEX; /* only needed for sounds */
-       unsigned int top = screen_y / TILEY;
-       unsigned int dx; /* only needed to find closest player */
-       unsigned int dy;
+  int x = 0;
+  int y = 1;
+  unsigned int random = RandomEM;
+  short *cave_cache = Cave[y]; /* might be a win */
+  int score = 0;
 
-#define RANDOM (random = random << 31 | random >> 1)
-#define PLAY(sample) { if((unsigned int)(y - top) <= 12 && (unsigned int)(x - left) <= 20) play[sample] = 1; }
+  int temp = 0;                        /* initialized to make compilers happy */
+  int dx;                      /* only needed to find closest player */
+  int dy;
+  int element;
+
+ loop:
+
+  element = cave_cache[++x];
+
+  switch (element)
+  {
+    default:
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
 
-loop:
-       switch(cave_cache[++x]) {
-       default:
-               goto loop;
-/* ---------------------------------------------------------------------- */
 #ifdef BAD_ROLL
-       case Xstone_force_e:
-               switch(Cave[y][x+1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xstone;
-                       Next[y][x] = Xstone;
-                       goto loop;
-               default:
-                       Cave[y][x] = Ystone_eB;
-                       Cave[y][x+1] = Ystone_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xstone_pause;
-                       goto loop;
-               }
-       case Xstone_force_w:
-               switch(Cave[y][x-1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xstone;
-                       Next[y][x] = Xstone;
-                       goto loop;
-               default:
-                       Cave[y][x] = Ystone_wB;
-                       Cave[y][x-1] = Ystone_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xstone_pause;
-                       goto loop;
-               }
-       case Xnut_force_e:
-               switch(Cave[y][x+1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xnut;
-                       Next[y][x] = Xnut;
-                       goto loop;
-               default:
-                       Cave[y][x] = Ynut_eB;
-                       Cave[y][x+1] = Ynut_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xnut_pause;
-                       goto loop;
-               }
-       case Xnut_force_w:
-               switch(Cave[y][x-1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xnut;
-                       Next[y][x] = Xnut;
-                       goto loop;
-               default:
-                       Cave[y][x] = Ynut_wB;
-                       Cave[y][x-1] = Ynut_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xnut_pause;
-                       goto loop;
-               }
-       case Xspring_force_e:
-               switch(Cave[y][x+1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xspring;
-                       Next[y][x] = Xspring;
-                       goto loop;
-               default:
-                       Cave[y][x] = Yspring_eB;
-                       Cave[y][x+1] = Yspring_e;
-                       Next[y][x] = Xblank;
+    case Xstone_force_e:
+      switch (Cave[y][x+1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xstone;
+         Next[y][x] = Xstone;
+         goto loop;
+
+       default:
+         Cave[y][x] = Ystone_eB;
+         Cave[y][x+1] = Ystone_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xstone_pause;
+         goto loop;
+      }
+
+    case Xstone_force_w:
+      switch (Cave[y][x-1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xstone;
+         Next[y][x] = Xstone;
+         goto loop;
+
+       default:
+         Cave[y][x] = Ystone_wB;
+         Cave[y][x-1] = Ystone_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xstone_pause;
+         goto loop;
+      }
+
+    case Xnut_force_e:
+      switch (Cave[y][x+1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xnut;
+         Next[y][x] = Xnut;
+         goto loop;
+
+       default:
+         Cave[y][x] = Ynut_eB;
+         Cave[y][x+1] = Ynut_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xnut_pause;
+         goto loop;
+      }
+
+    case Xnut_force_w:
+      switch (Cave[y][x-1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xnut;
+         Next[y][x] = Xnut;
+         goto loop;
+
+       default:
+         Cave[y][x] = Ynut_wB;
+         Cave[y][x-1] = Ynut_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xnut_pause;
+         goto loop;
+       }
+
+    case Xspring_force_e:
+      switch (Cave[y][x+1])
+      {
+        case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xspring;
+         Next[y][x] = Xspring;
+         goto loop;
+
+       default:
+         Cave[y][x] = Yspring_eB;
+         Cave[y][x+1] = Yspring_e;
+         Next[y][x] = Xblank;
+
 #ifdef BAD_SPRING
-                       Next[y][x+1] = Xspring_e;
+         Next[y][x+1] = Xspring_e;
 #else
-                       Next[y][x+1] = Xspring_pause;
+         Next[y][x+1] = Xspring_pause;
 #endif
-                       goto loop;
-               }
-       case Xspring_force_w:
-               switch(Cave[y][x-1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xspring;
-                       Next[y][x] = Xspring;
-                       goto loop;
-               default:
-                       Cave[y][x] = Yspring_wB;
-                       Cave[y][x-1] = Yspring_w;
-                       Next[y][x] = Xblank;
+
+         goto loop;
+      }
+
+    case Xspring_force_w:
+      switch (Cave[y][x-1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xspring;
+         Next[y][x] = Xspring;
+         goto loop;
+
+       default:
+         Cave[y][x] = Yspring_wB;
+         Cave[y][x-1] = Yspring_w;
+         Next[y][x] = Xblank;
+
 #ifdef BAD_SPRING
-                       Next[y][x-1] = Xspring_w;
-#else
-                       Next[y][x-1] = Xspring_pause;
+         Next[y][x-1] = Xspring_w;
+#else  
+         Next[y][x-1] = Xspring_pause;
+#endif 
+         goto loop;
+       }
+
+    case Xemerald_force_e:
+      switch (Cave[y][x+1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xemerald;
+         Next[y][x] = Xemerald;
+         goto loop;
+
+       default:
+         Cave[y][x] = Yemerald_eB;
+         Cave[y][x+1] = Yemerald_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xemerald_pause;
+         goto loop;
+       }
+
+    case Xemerald_force_w:
+      switch (Cave[y][x-1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xemerald;
+         Next[y][x] = Xemerald;
+         goto loop;
+
+       default:
+         Cave[y][x] = Yemerald_wB;
+         Cave[y][x-1] = Yemerald_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xemerald_pause;
+         goto loop;
+       }
+
+    case Xdiamond_force_e:
+      switch (Cave[y][x+1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xdiamond;
+         Next[y][x] = Xdiamond;
+         goto loop;
+
+       default:
+         Cave[y][x] = Ydiamond_eB;
+         Cave[y][x+1] = Ydiamond_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xdiamond_pause;
+         goto loop;
+       }
+
+    case Xdiamond_force_w:
+      switch (Cave[y][x-1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xdiamond;
+         Next[y][x] = Xdiamond;
+         goto loop;
+
+       default:
+         Cave[y][x] = Ydiamond_wB;
+         Cave[y][x-1] = Ydiamond_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xdiamond_pause;
+         goto loop;
+       }
+
+    case Xbomb_force_e:
+      switch (Cave[y][x+1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xbomb;
+         Next[y][x] = Xbomb;
+         goto loop;
+
+       default:
+         Cave[y][x] = Ybomb_eB;
+         Cave[y][x+1] = Ybomb_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xbomb_pause;
+         goto loop;
+       }
+
+    case Xbomb_force_w:
+      switch (Cave[y][x-1])
+      {
+       case ZBORDER:
+       case Znormal:
+       case Zdynamite:
+       case Xboom_bug:
+       case Xboom_bomb:
+       case Xboom_android:
+       case Xboom_1:
+       case Zplayer:
+         Cave[y][x] = Xbomb;
+         Next[y][x] = Xbomb;
+         goto loop;
+
+       default:
+         Cave[y][x] = Ybomb_wB;
+         Cave[y][x-1] = Ybomb_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xbomb_pause;
+         goto loop;
+       }
+#endif /* BAD_ROLL */
+
+    /* --------------------------------------------------------------------- */
+
+    case Xstone:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ystone_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+#if 1
+        case Xfake_acid_1:
+        case Xfake_acid_2:
+        case Xfake_acid_3:
+        case Xfake_acid_4:
+        case Xfake_acid_5:
+        case Xfake_acid_6:
+        case Xfake_acid_7:
+        case Xfake_acid_8:
 #endif
-                       goto loop;
-               }
-       case Xemerald_force_e:
-               switch(Cave[y][x+1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xemerald;
-                       Next[y][x] = Xemerald;
-                       goto loop;
-               default:
-                       Cave[y][x] = Yemerald_eB;
-                       Cave[y][x+1] = Yemerald_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xemerald_pause;
-                       goto loop;
-               }
-       case Xemerald_force_w:
-               switch(Cave[y][x-1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xemerald;
-                       Next[y][x] = Xemerald;
-                       goto loop;
-               default:
-                       Cave[y][x] = Yemerald_wB;
-                       Cave[y][x-1] = Yemerald_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xemerald_pause;
-                       goto loop;
-               }
-       case Xdiamond_force_e:
-               switch(Cave[y][x+1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xdiamond;
-                       Next[y][x] = Xdiamond;
-                       goto loop;
-               default:
-                       Cave[y][x] = Ydiamond_eB;
-                       Cave[y][x+1] = Ydiamond_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xdiamond_pause;
-                       goto loop;
-               }
-       case Xdiamond_force_w:
-               switch(Cave[y][x-1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xdiamond;
-                       Next[y][x] = Xdiamond;
-                       goto loop;
-               default:
-                       Cave[y][x] = Ydiamond_wB;
-                       Cave[y][x-1] = Ydiamond_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xdiamond_pause;
-                       goto loop;
-               }
-       case Xbomb_force_e:
-               switch(Cave[y][x+1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xbomb;
-                       Next[y][x] = Xbomb;
-                       goto loop;
-               default:
-                       Cave[y][x] = Ybomb_eB;
-                       Cave[y][x+1] = Ybomb_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xbomb_pause;
-                       goto loop;
-               }
-       case Xbomb_force_w:
-               switch(Cave[y][x-1]) {
-               case ZBORDER:
-               case Znormal:
-               case Zdynamite:
-               case Xboom_bug:
-               case Xboom_bomb:
-               case Xboom_android:
-               case Xboom_1:
-               case Zplayer:
-                       Cave[y][x] = Xbomb;
-                       Next[y][x] = Xbomb;
-                       goto loop;
-               default:
-                       Cave[y][x] = Ybomb_wB;
-                       Cave[y][x-1] = Ybomb_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xbomb_pause;
-                       goto loop;
-               }
+         Cave[y][x] = Ystone_sB;
+         Cave[y+1][x] = Ystone_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xstone_fall;
+         goto loop;
+
+       case Xsand:
+         Cave[y][x] = Xsand_stonein_1;
+         Cave[y+1][x] = Xsand_sandstone_1;
+         Next[y][x] = Xsand_stonein_2;
+         Next[y+1][x] = Xsand_sandstone_2;
+         goto loop;
+
+        case Xspring:
+       case Xspring_pause:
+       case Xspring_e:
+       case Xspring_w:
+       case Xandroid:
+       case Xandroid_1_n:
+       case Xandroid_2_n:
+       case Xandroid_1_e:
+       case Xandroid_2_e:
+       case Xandroid_1_s:
+       case Xandroid_2_s:
+       case Xandroid_1_w:
+       case Xandroid_2_w:
+       case Xstone:
+       case Xstone_pause:
+       case Xemerald:
+       case Xemerald_pause:
+       case Xdiamond:
+       case Xdiamond_pause:
+       case Xbomb:
+       case Xbomb_pause:
+       case Xballoon:
+       case Xacid_ne:
+       case Xacid_nw:
+       case Xball_1:
+       case Xball_2:
+       case Xnut:
+       case Xnut_pause:
+       case Xgrow_ns:
+       case Xgrow_ew:
+       case Xkey_1:
+       case Xkey_2:
+       case Xkey_3:
+       case Xkey_4:
+       case Xkey_5:
+       case Xkey_6:
+       case Xkey_7:
+       case Xkey_8:
+       case Xbumper:
+       case Xswitch:
+       case Xlenses:
+       case Xmagnify:
+       case Xround_wall_1:
+       case Xround_wall_2:
+       case Xround_wall_3:
+       case Xround_wall_4:
+         if (RANDOM & 1)
+         {
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Ystone_eB;
+             Cave[y][x+1] = Ystone_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xstone_pause;
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Ystone_wB;
+             Cave[y][x-1] = Ystone_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xstone_pause;
+             goto loop;
+           }
+         }
+         else
+         {
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Ystone_wB;
+             Cave[y][x-1] = Ystone_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xstone_pause;
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Ystone_eB;
+             Cave[y][x+1] = Ystone_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xstone_pause;
+             goto loop;
+           }
+         }
+
+        default:
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xstone_pause:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ystone_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+#if 1
+        case Xfake_acid_1:
+        case Xfake_acid_2:
+        case Xfake_acid_3:
+        case Xfake_acid_4:
+        case Xfake_acid_5:
+        case Xfake_acid_6:
+        case Xfake_acid_7:
+        case Xfake_acid_8:
 #endif
-/* ---------------------------------------------------------------------- */
-       case Xstone:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ystone_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-                       Cave[y][x] = Ystone_sB;
-                       Cave[y+1][x] = Ystone_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xstone_fall;
-                       goto loop;
-               case Xsand:
-                       Cave[y][x] = Xsand_stonein_1;
-                       Cave[y+1][x] = Xsand_sandstone_1;
-                       Next[y][x] = Xsand_stonein_2;
-                       Next[y+1][x] = Xsand_sandstone_2;
-                       goto loop;
-               case Xspring:
-               case Xspring_pause:
-               case Xspring_e:
-               case Xspring_w:
-               case Xandroid:
-               case Xandroid_1_n:
-               case Xandroid_2_n:
-               case Xandroid_1_e:
-               case Xandroid_2_e:
-               case Xandroid_1_s:
-               case Xandroid_2_s:
-               case Xandroid_1_w:
-               case Xandroid_2_w:
-               case Xstone:
-               case Xstone_pause:
-               case Xemerald:
-               case Xemerald_pause:
-               case Xdiamond:
-               case Xdiamond_pause:
-               case Xbomb:
-               case Xbomb_pause:
-               case Xballoon:
-               case Xacid_ne:
-               case Xacid_nw:
-               case Xball_1:
-               case Xball_2:
-               case Xnut:
-               case Xnut_pause:
-               case Xgrow_ns:
-               case Xgrow_ew:
-               case Xkey_1:
-               case Xkey_2:
-               case Xkey_3:
-               case Xkey_4:
-               case Xkey_5:
-               case Xkey_6:
-               case Xkey_7:
-               case Xkey_8:
-               case Xbumper:
-               case Xswitch:
-               case Xlenses:
-               case Xmagnify:
-               case Xround_wall_1:
-               case Xround_wall_2:
-               case Xround_wall_3:
-               case Xround_wall_4:
-                       if(RANDOM & 1) {
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Ystone_eB;
-                                       Cave[y][x+1] = Ystone_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xstone_pause;
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Ystone_wB;
-                                       Cave[y][x-1] = Ystone_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xstone_pause;
-                                       goto loop;
-                               }
-                       } else {
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Ystone_wB;
-                                       Cave[y][x-1] = Ystone_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xstone_pause;
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Ystone_eB;
-                                       Cave[y][x+1] = Ystone_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xstone_pause;
-                                       goto loop;
-                               }
-                       }
-               default:
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xstone_pause:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ystone_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Ystone_sB;
-                       Cave[y+1][x] = Ystone_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xstone_fall;
-                       goto loop;
-               default:
-                       Cave[y][x] = Xstone;
-                       Next[y][x] = Xstone;
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xstone_fall:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ystone_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Zplayer:
-                       Cave[y][x] = Ystone_sB;
-                       Cave[y+1][x] = Ystone_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xstone_fall;
-                       goto loop;
-               case Xnut:
-               case Xnut_pause:
-                       Cave[y+1][x] = Yemerald_stone;
-                       Next[y][x] = Xstone;
-                       Next[y+1][x] = Xemerald;
-                       play[SAMPLE_crack] = 1;
-                       score += lev.nut_score;
-                       goto loop;
-               case Xbug_n:
-               case Xbug_e:
-               case Xbug_s:
-               case Xbug_w:
-               case Xbug_gon:
-               case Xbug_goe:
-               case Xbug_gos:
-               case Xbug_gow:
-                       Cave[y][x] = Ystone_sB;
-                       Cave[y+1][x] = Ybug_stone;
-                       Next[y+1][x] = Znormal;
-                       Boom[y][x-1] = Xemerald;
-                       Boom[y][x] = Xemerald;
-                       Boom[y][x+1] = Xemerald;
-                       Boom[y+1][x-1] = Xemerald;
-                       Boom[y+1][x] = Xdiamond;
-                       Boom[y+1][x+1] = Xemerald;
-                       Boom[y+2][x-1] = Xemerald;
-                       Boom[y+2][x] = Xemerald;
-                       Boom[y+2][x+1] = Xemerald;
-                       score += lev.bug_score;
-                       goto loop;
-               case Xtank_n:
-               case Xtank_e:
-               case Xtank_s:
-               case Xtank_w:
-               case Xtank_gon:
-               case Xtank_goe:
-               case Xtank_gos:
-               case Xtank_gow:
-                       Cave[y][x] = Ystone_sB;
-                       Cave[y+1][x] = Ytank_stone;
-                       Next[y+1][x] = Znormal;
-                       Boom[y][x-1] = Xblank;
-                       Boom[y][x] = Xblank;
-                       Boom[y][x+1] = Xblank;
-                       Boom[y+1][x-1] = Xblank;
-                       Boom[y+1][x] = Xblank;
-                       Boom[y+1][x+1] = Xblank;
-                       Boom[y+2][x-1] = Xblank;
-                       Boom[y+2][x] = Xblank;
-                       Boom[y+2][x+1] = Xblank;
-                       score += lev.tank_score;
-                       goto loop;
-               case Xspring:
-                       if(RANDOM & 1) {
-                               switch(Cave[y+1][x+1]) {
-                               case Xblank:
-                               case Yacid_splash_eB:
-                               case Yacid_splash_wB:
-                               case Xalien:
-                               case Xalien_pause:
-                                       Cave[y+1][x] = Xspring_e; break;
-                               default:
-                                       Cave[y+1][x] = Xspring_w; break;
-                               }
-                       } else {
-                               switch(Cave[y+1][x-1]) {
-                               case Xblank:
-                               case Yacid_splash_eB:
-                               case Yacid_splash_wB:
-                               case Xalien:
-                               case Xalien_pause:
-                                       Cave[y+1][x] = Xspring_w; break;
-                               default:
-                                       Cave[y+1][x] = Xspring_e; break;
-                               }
-                       }
-                       Next[y][x] = Xstone;
-                       goto loop;
-               case Xeater_n:
-               case Xeater_e:
-               case Xeater_s:
-               case Xeater_w:
-                       Cave[y][x] = Ystone_sB;
-                       Cave[y+1][x] = Yeater_stone;
-                       Next[y+1][x] = Znormal;
-                       Boom[y][x-1] = lev.eater_array[lev.eater_pos][0];
-                       Boom[y][x] = lev.eater_array[lev.eater_pos][1];
-                       Boom[y][x+1] = lev.eater_array[lev.eater_pos][2];
-                       Boom[y+1][x-1] = lev.eater_array[lev.eater_pos][3];
-                       Boom[y+1][x] = lev.eater_array[lev.eater_pos][4];
-                       Boom[y+1][x+1] = lev.eater_array[lev.eater_pos][5];
-                       Boom[y+2][x-1] = lev.eater_array[lev.eater_pos][6];
-                       Boom[y+2][x] = lev.eater_array[lev.eater_pos][7];
-                       Boom[y+2][x+1] = lev.eater_array[lev.eater_pos][8];
-                       lev.eater_pos = (lev.eater_pos + 1) & 7;
-                       score += lev.eater_score;
-                       goto loop;
-               case Xalien:
-               case Xalien_pause:
-                       Cave[y][x] = Ystone_sB;
-                       Cave[y+1][x] = Yalien_stone;
-                       Next[y+1][x] = Znormal;
-                       Boom[y][x-1] = Xblank;
-                       Boom[y][x] = Xblank;
-                       Boom[y][x+1] = Xblank;
-                       Boom[y+1][x-1] = Xblank;
-                       Boom[y+1][x] = Xblank;
-                       Boom[y+1][x+1] = Xblank;
-                       Boom[y+2][x-1] = Xblank;
-                       Boom[y+2][x] = Xblank;
-                       Boom[y+2][x+1] = Xblank;
-                       score += lev.alien_score;
-                       goto loop;
-               case Xdiamond:
-               case Xdiamond_pause:
-                       switch(Cave[y+2][x]) {
-                       case Xblank:
-                       case Yacid_splash_eB:
-                       case Yacid_splash_wB:
-                       case Zplayer:
-                       case Xbug_n:
-                       case Xbug_e:
-                       case Xbug_s:
-                       case Xbug_w:
-                       case Xbug_gon:
-                       case Xbug_goe:
-                       case Xbug_gos:
-                       case Xbug_gow:
-                       case Xtank_n:
-                       case Xtank_e:
-                       case Xtank_s:
-                       case Xtank_w:
-                       case Xtank_gon:
-                       case Xtank_goe:
-                       case Xtank_gos:
-                       case Xtank_gow:
-                       case Xspring_fall:
-                       case Xandroid:
-                       case Xandroid_1_n:
-                       case Xandroid_2_n:
-                       case Xandroid_1_e:
-                       case Xandroid_2_e:
-                       case Xandroid_1_s:
-                       case Xandroid_2_s:
-                       case Xandroid_1_w:
-                       case Xandroid_2_w:
-                       case Xstone_fall:
-                       case Xemerald_fall:
-                       case Xdiamond_fall:
-                       case Xbomb_fall:
-                       case Xacid_s:
-                       case Xacid_1:
-                       case Xacid_2:
-                       case Xacid_3:
-                       case Xacid_4:
-                       case Xacid_5:
-                       case Xacid_6:
-                       case Xacid_7:
-                       case Xacid_8:
-                       case Xnut_fall:
-                       case Xplant:
-                       case Yplant:
-                               Next[y][x] = Xstone;
-                               PLAY(SAMPLE_stone);
-                               goto loop;
-                       }
-                       Cave[y][x] = Ystone_sB;
-                       Cave[y+1][x] = Ydiamond_stone;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xstone_pause;
-                       play[SAMPLE_squash] = 1;
-                       goto loop;
-               case Xbomb:
-               case Xbomb_pause:
-                       Cave[y+1][x] = Ybomb_eat;
-                       Next[y+1][x] = Znormal;
-                       Boom[y][x-1] = Xblank;
-                       Boom[y][x] = Xblank;
-                       Boom[y][x+1] = Xblank;
-                       Boom[y+1][x-1] = Xblank;
-                       Boom[y+1][x] = Xblank;
-                       Boom[y+1][x+1] = Xblank;
-                       Boom[y+2][x-1] = Xblank;
-                       Boom[y+2][x] = Xblank;
-                       Boom[y+2][x+1] = Xblank;
-                       goto loop;
-               case Xwonderwall:
-                       if(lev.wonderwall_time) {
-                               lev.wonderwall_state = 1;
-                               Cave[y][x] = Ystone_sB;
-                               if(tab_blank[Cave[y+2][x]]) {
-                                       Cave[y+2][x] = Yemerald_s;
-                                       Next[y+2][x] = Xemerald_fall;
-                               }
-                               Next[y][x] = Xblank;
-                               play[SAMPLE_squash] = 1;
-                               goto loop;
-                       }
-               default:
-                       Cave[y][x] = Xstone;
-                       Next[y][x] = Xstone;
-                       PLAY(SAMPLE_stone);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xnut:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ynut_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Ynut_sB;
-                       Cave[y+1][x] = Ynut_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xnut_fall;
-                       goto loop;
-               case Xspring:
-               case Xspring_pause:
-               case Xspring_e:
-               case Xspring_w:
-               case Xandroid:
-               case Xandroid_1_n:
-               case Xandroid_2_n:
-               case Xandroid_1_e:
-               case Xandroid_2_e:
-               case Xandroid_1_s:
-               case Xandroid_2_s:
-               case Xandroid_1_w:
-               case Xandroid_2_w:
-               case Xstone:
-               case Xstone_pause:
-               case Xemerald:
-               case Xemerald_pause:
-               case Xdiamond:
-               case Xdiamond_pause:
-               case Xbomb:
-               case Xbomb_pause:
-               case Xballoon:
-               case Xacid_ne:
-               case Xacid_nw:
-               case Xball_1:
-               case Xball_2:
-               case Xnut:
-               case Xnut_pause:
-               case Xgrow_ns:
-               case Xgrow_ew:
-               case Xkey_1:
-               case Xkey_2:
-               case Xkey_3:
-               case Xkey_4:
-               case Xkey_5:
-               case Xkey_6:
-               case Xkey_7:
-               case Xkey_8:
-               case Xbumper:
-               case Xswitch:
-               case Xround_wall_1:
-               case Xround_wall_2:
-               case Xround_wall_3:
-               case Xround_wall_4:
-                       if(RANDOM & 1) {
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Ynut_eB;
-                                       Cave[y][x+1] = Ynut_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xnut_pause;
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Ynut_wB;
-                                       Cave[y][x-1] = Ynut_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xnut_pause;
-                                       goto loop;
-                               }
-                       } else {
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Ynut_wB;
-                                       Cave[y][x-1] = Ynut_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xnut_pause;
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Ynut_eB;
-                                       Cave[y][x+1] = Ynut_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xnut_pause;
-                                       goto loop;
-                               }
-                       }
-               default:
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xnut_pause:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ynut_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Ynut_sB;
-                       Cave[y+1][x] = Ynut_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xnut_fall;
-                       goto loop;
-               default:
-                       Cave[y][x] = Xnut;
-                       Next[y][x] = Xnut;
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xnut_fall:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ynut_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Zplayer:
-                       Cave[y][x] = Ynut_sB;
-                       Cave[y+1][x] = Ynut_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xnut_fall;
-                       goto loop;
-               default:
-                       Cave[y][x] = Xnut;
-                       Next[y][x] = Xnut;
-                       PLAY(SAMPLE_nut);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xbug_n:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto bug_boom;
-               switch(Cave[y][x+1]) {
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-               case Zplayer:
-                       Cave[y][x] = Ybug_n_e;
-                       Next[y][x] = Xbug_goe;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               default:
-                       goto bug_gon;
-               }
-       case Xbug_gon:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto bug_boom;
-       bug_gon:
-               switch(Cave[y-1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ybug_nB;
-                       if(Cave[y-2][x+1] == Xblank) Cave[y-2][x+1] = Yacid_splash_eB;
-                       if(Cave[y-2][x-1] == Xblank) Cave[y-2][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Ybug_nB;
-                       Cave[y-1][x] = Ybug_n;
-                       Next[y][x] = Xblank;
-                       Next[y-1][x] = Xbug_n;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               default:
-                       Cave[y][x] = Ybug_n_w;
-                       Next[y][x] = Xbug_gow;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xbug_e:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto bug_boom;
-               switch(Cave[y+1][x]) {
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-               case Zplayer:
-                       Cave[y][x] = Ybug_e_s;
-                       Next[y][x] = Xbug_gos;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               default:
-                       goto bug_goe;
-               }
-       case Xbug_goe:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto bug_boom;
-       bug_goe:
-               switch(Cave[y][x+1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ybug_eB;
-                       if(Cave[y-1][x+2] == Xblank) Cave[y-1][x+2] = Yacid_splash_eB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Ybug_eB;
-                       Cave[y][x+1] = Ybug_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xbug_e;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               default:
-                       Cave[y][x] = Ybug_e_n;
-                       Next[y][x] = Xbug_gon;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xbug_s:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto bug_boom;
-               switch(Cave[y][x-1]) {
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-               case Zplayer:
-                       Cave[y][x] = Ybug_s_w;
-                       Next[y][x] = Xbug_gow;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               default:
-                       goto bug_gos;
-               }
-       case Xbug_gos:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto bug_boom;
-       bug_gos:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ybug_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Ybug_sB;
-                       Cave[y+1][x] = Ybug_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xbug_s;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               default:
-                       Cave[y][x] = Ybug_s_e;
-                       Next[y][x] = Xbug_goe;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xbug_w:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto bug_boom;
-               switch(Cave[y-1][x]) {
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-               case Zplayer:
-                       Cave[y][x] = Ybug_w_n;
-                       Next[y][x] = Xbug_gon;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               default:
-                       goto bug_gow;
-               }
-       case Xbug_gow:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto bug_boom;
-       bug_gow:
-               switch(Cave[y][x-1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ybug_wB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_eB;
-                       if(Cave[y-1][x-2] == Xblank) Cave[y-1][x-2] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Ybug_wB;
-                       Cave[y][x-1] = Ybug_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xbug_w;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               default:
-                       Cave[y][x] = Ybug_w_s;
-                       Next[y][x] = Xbug_gos;
-                       PLAY(SAMPLE_bug);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xtank_n:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto tank_boom;
-               switch(Cave[y][x-1]) {
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-               case Zplayer:
-                       Cave[y][x] = Ytank_n_w;
-                       Next[y][x] = Xtank_gow;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto tank_gon;
-               }
-       case Xtank_gon:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto tank_boom;
-       tank_gon:
-               switch(Cave[y-1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ytank_nB;
-                       if(Cave[y-2][x+1] == Xblank) Cave[y-2][x+1] = Yacid_splash_eB;
-                       if(Cave[y-2][x-1] == Xblank) Cave[y-2][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Ytank_nB;
-                       Cave[y-1][x] = Ytank_n;
-                       Next[y][x] = Xblank;
-                       Next[y-1][x] = Xtank_n;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       Cave[y][x] = Ytank_n_e;
-                       Next[y][x] = Xtank_goe;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xtank_e:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto tank_boom;
-               switch(Cave[y-1][x]) {
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-               case Zplayer:
-                       Cave[y][x] = Ytank_e_n;
-                       Next[y][x] = Xtank_gon;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto tank_goe;
-               }
-       case Xtank_goe:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto tank_boom;
-       tank_goe:
-               switch(Cave[y][x+1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ytank_eB;
-                       if(Cave[y-1][x+2] == Xblank) Cave[y-1][x+2] = Yacid_splash_eB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Ytank_eB;
-                       Cave[y][x+1] = Ytank_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xtank_e;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       Cave[y][x] = Ytank_e_s;
-                       Next[y][x] = Xtank_gos;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xtank_s:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto tank_boom;
-               switch(Cave[y][x+1]) {
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-               case Zplayer:
-                       Cave[y][x] = Ytank_s_e;
-                       Next[y][x] = Xtank_goe;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto tank_gos;
-               }
-       case Xtank_gos:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto tank_boom;
-       tank_gos:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ytank_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Ytank_sB;
-                       Cave[y+1][x] = Ytank_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xtank_s;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       Cave[y][x] = Ytank_s_w;
-                       Next[y][x] = Xtank_gow;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xtank_w:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto tank_boom;
-               switch(Cave[y+1][x]) {
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-               case Zplayer:
-                       Cave[y][x] = Ytank_w_s;
-                       Next[y][x] = Xtank_gos;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto tank_gow;
-               }
-       case Xtank_gow:
-               if(tab_ameuba[Cave[y-1][x]] || tab_ameuba[Cave[y][x+1]] || tab_ameuba[Cave[y+1][x]] || tab_ameuba[Cave[y][x-1]]) goto tank_boom;
-       tank_gow:
-               switch(Cave[y][x-1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ytank_wB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_eB;
-                       if(Cave[y-1][x-2] == Xblank) Cave[y-1][x-2] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Ytank_wB;
-                       Cave[y][x-1] = Ytank_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xtank_w;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       Cave[y][x] = Ytank_w_n;
-                       Next[y][x] = Xtank_gon;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xandroid:
-       android:
-               if(lev.android_clone_cnt == 0) {
-                       if(Cave[y-1][x-1] != Xblank && Cave[y-1][x] != Xblank &&
-                          Cave[y-1][x+1] != Xblank && Cave[y][x-1] != Xblank &&
-                          Cave[y][x+1] != Xblank && Cave[y+1][x-1] != Xblank &&
-                          Cave[y+1][x] != Xblank && Cave[y+1][x+1] != Xblank) goto android_move;
-
-                       switch(RANDOM & 7) { /* randomly find an object to clone */
-                       case 0: /* S,NE,W,NW,SE,E,SW,N */
-                               temp = lev.android_array[Cave[y+1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x]]; if(temp != Xblank) break;
-                               goto android_move;
-                       case 1: /* NW,SE,N,S,NE,SW,E,W */
-                               temp = lev.android_array[Cave[y-1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x-1]]; if(temp != Xblank) break;
-                               goto android_move;
-                       case 2: /* SW,E,S,W,N,NW,SE,NE */
-                               temp = lev.android_array[Cave[y+1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x+1]]; if(temp != Xblank) break;
-                               goto android_move;
-                       case 3: /* N,SE,NE,E,W,S,NW,SW */
-                               temp = lev.android_array[Cave[y-1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x-1]]; if(temp != Xblank) break;
-                               goto android_move;
-                       case 4: /* SE,NW,E,NE,SW,W,N,S */
-                               temp = lev.android_array[Cave[y+1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x]]; if(temp != Xblank) break;
-                               goto android_move;
-                       case 5: /* NE,W,SE,SW,S,N,E,NW */
-                               temp = lev.android_array[Cave[y-1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x-1]]; if(temp != Xblank) break;
-                               goto android_move;
-                       case 6: /* E,N,SW,S,NW,NE,SE,W */
-                               temp = lev.android_array[Cave[y][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x-1]]; if(temp != Xblank) break;
-                               goto android_move;
-                       case 7: /* W,SW,NW,N,E,SE,NE,S */
-                               temp = lev.android_array[Cave[y][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x-1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y-1][x+1]]; if(temp != Xblank) break;
-                               temp = lev.android_array[Cave[y+1][x]]; if(temp != Xblank) break;
-                               goto android_move;
-                       }
-                       Next[y][x] = temp; /* the item we chose to clone */
-                       play[SAMPLE_android] = 1;
-                       switch(RANDOM & 7) { /* randomly find a direction to move */
-                       case 0: /* S,NE,W,NW,SE,E,SW,N */
-                               if(Cave[y+1][x] == Xblank) goto android_s;
-                               if(Cave[y-1][x+1] == Xblank) goto android_ne;
-                               if(Cave[y][x-1] == Xblank) goto android_w;
-                               if(Cave[y-1][x-1] == Xblank) goto android_nw;
-                               if(Cave[y+1][x+1] == Xblank) goto android_se;
-                               if(Cave[y][x+1] == Xblank) goto android_e;
-                               if(Cave[y+1][x-1] == Xblank) goto android_sw;
-                               if(Cave[y-1][x] == Xblank) goto android_n;
-                               goto android_move;
-                       case 1: /* NW,SE,N,S,NE,SW,E,W */
-                               if(Cave[y-1][x-1] == Xblank) goto android_nw;
-                               if(Cave[y+1][x+1] == Xblank) goto android_se;
-                               if(Cave[y-1][x] == Xblank) goto android_n;
-                               if(Cave[y+1][x] == Xblank) goto android_s;
-                               if(Cave[y-1][x+1] == Xblank) goto android_ne;
-                               if(Cave[y+1][x-1] == Xblank) goto android_sw;
-                               if(Cave[y][x+1] == Xblank) goto android_e;
-                               if(Cave[y][x-1] == Xblank) goto android_w;
-                               goto android_move;
-                       case 2: /* SW,E,S,W,N,NW,SE,NE */
-                               if(Cave[y+1][x-1] == Xblank) goto android_sw;
-                               if(Cave[y][x+1] == Xblank) goto android_e;
-                               if(Cave[y+1][x] == Xblank) goto android_s;
-                               if(Cave[y][x-1] == Xblank) goto android_w;
-                               if(Cave[y-1][x] == Xblank) goto android_n;
-                               if(Cave[y-1][x-1] == Xblank) goto android_nw;
-                               if(Cave[y+1][x+1] == Xblank) goto android_se;
-                               if(Cave[y-1][x+1] == Xblank) goto android_ne;
-                               goto android_move;
-                       case 3: /* N,SE,NE,E,W,S,NW,SW */
-                               if(Cave[y-1][x] == Xblank) goto android_n;
-                               if(Cave[y+1][x+1] == Xblank) goto android_se;
-                               if(Cave[y-1][x+1] == Xblank) goto android_ne;
-                               if(Cave[y][x+1] == Xblank) goto android_e;
-                               if(Cave[y][x-1] == Xblank) goto android_w;
-                               if(Cave[y+1][x] == Xblank) goto android_s;
-                               if(Cave[y-1][x-1] == Xblank) goto android_nw;
-                               if(Cave[y+1][x-1] == Xblank) goto android_sw;
-                               goto android_move;
-                       case 4: /* SE,NW,E,NE,SW,W,N,S */
-                               if(Cave[y+1][x+1] == Xblank) goto android_se;
-                               if(Cave[y-1][x-1] == Xblank) goto android_nw;
-                               if(Cave[y][x+1] == Xblank) goto android_e;
-                               if(Cave[y-1][x+1] == Xblank) goto android_ne;
-                               if(Cave[y+1][x-1] == Xblank) goto android_sw;
-                               if(Cave[y][x-1] == Xblank) goto android_w;
-                               if(Cave[y-1][x] == Xblank) goto android_n;
-                               if(Cave[y+1][x] == Xblank) goto android_s;
-                               goto android_move;
-                       case 5: /* NE,W,SE,SW,S,N,E,NW */
-                               if(Cave[y-1][x+1] == Xblank) goto android_ne;
-                               if(Cave[y][x-1] == Xblank) goto android_w;
-                               if(Cave[y+1][x+1] == Xblank) goto android_se;
-                               if(Cave[y+1][x-1] == Xblank) goto android_sw;
-                               if(Cave[y+1][x] == Xblank) goto android_s;
-                               if(Cave[y-1][x] == Xblank) goto android_n;
-                               if(Cave[y][x+1] == Xblank) goto android_e;
-                               if(Cave[y-1][x-1] == Xblank) goto android_nw;
-                               goto android_move;
-                       case 6: /* E,N,SW,S,NW,NE,SE,W */
-                               if(Cave[y][x+1] == Xblank) goto android_e;
-                               if(Cave[y-1][x] == Xblank) goto android_n;
-                               if(Cave[y+1][x-1] == Xblank) goto android_sw;
-                               if(Cave[y+1][x] == Xblank) goto android_s;
-                               if(Cave[y-1][x-1] == Xblank) goto android_nw;
-                               if(Cave[y-1][x+1] == Xblank) goto android_ne;
-                               if(Cave[y+1][x+1] == Xblank) goto android_se;
-                               if(Cave[y][x-1] == Xblank) goto android_w;
-                               goto android_move;
-                       case 7: /* W,SW,NW,N,E,SE,NE,S */
-                               if(Cave[y][x-1] == Xblank) goto android_w;
-                               if(Cave[y+1][x-1] == Xblank) goto android_sw;
-                               if(Cave[y-1][x-1] == Xblank) goto android_nw;
-                               if(Cave[y-1][x] == Xblank) goto android_n;
-                               if(Cave[y][x+1] == Xblank) goto android_e;
-                               if(Cave[y+1][x+1] == Xblank) goto android_se;
-                               if(Cave[y-1][x+1] == Xblank) goto android_ne;
-                               if(Cave[y+1][x] == Xblank) goto android_s;
-                               goto android_move;
-                       }
-               }
-       android_move:
-               if(lev.android_move_cnt == 0) {
-                       if(Cave[y-1][x-1] == Zplayer || Cave[y-1][x] == Zplayer ||
-                          Cave[y-1][x+1] == Zplayer || Cave[y][x-1] == Zplayer ||
-                          Cave[y][x+1] == Zplayer || Cave[y+1][x-1] == Zplayer ||
-                          Cave[y+1][x] == Zplayer || Cave[y+1][x+1] == Zplayer) goto android_still;
-
-                       if(ply1.alive && ply2.alive) {
-                               if( (ply1.x > x ? ply1.x - x : x - ply1.x) + (ply1.y > y ? ply1.y - y : y - ply1.y) < (ply2.x > x ? ply2.x - x : x - ply2.x) + (ply2.y > y ? ply2.y - y : y - ply2.y) ) {
-                                       dx = ply1.x;
-                                       dy = ply1.y;
-                               } else {
-                                       dx = ply2.x;
-                                       dy = ply2.y;
-                               }
-                       } else if(ply1.alive) {
-                               dx = ply1.x;
-                               dy = ply1.y;
-                       } else if(ply2.alive) {
-                               dx = ply2.x;
-                               dy = ply2.y;
-                       } else {
-                               dx = 0;
-                               dy = 0;
-                       }
-                       Next[y][x] = Xblank; /* assume we will move */
-                       temp = ((x < dx) + 1 - (x > dx)) + ((y < dy) + 1 - (y > dy)) * 3;
-                       if(RANDOM & 1) {
-                               switch(temp) { /* attempt clockwise move first if direct path is blocked */
-                               case 0: /* north west */
-                                       if(tab_android_move[Cave[y-1][x-1]]) goto android_nw;
-                                       if(tab_android_move[Cave[y-1][x]]) goto android_n;
-                                       if(tab_android_move[Cave[y][x-1]]) goto android_w;
-                                       break;
-                               case 1: /* north */
-                                       if(tab_android_move[Cave[y-1][x]]) goto android_n;
-                                       if(tab_android_move[Cave[y-1][x+1]]) goto android_ne;
-                                       if(tab_android_move[Cave[y-1][x-1]]) goto android_nw;
-                                       break;
-                               case 2: /* north east */
-                                       if(tab_android_move[Cave[y-1][x+1]]) goto android_ne;
-                                       if(tab_android_move[Cave[y][x+1]]) goto android_e;
-                                       if(tab_android_move[Cave[y-1][x]]) goto android_n;
-                                       break;
-                               case 3: /* west */
-                                       if(tab_android_move[Cave[y][x-1]]) goto android_w;
-                                       if(tab_android_move[Cave[y-1][x-1]]) goto android_nw;
-                                       if(tab_android_move[Cave[y+1][x-1]]) goto android_sw;
-                                       break;
-                               case 4: /* nowhere */
-                                       break;
-                               case 5: /* east */
-                                       if(tab_android_move[Cave[y][x+1]]) goto android_e;
-                                       if(tab_android_move[Cave[y+1][x+1]]) goto android_se;
-                                       if(tab_android_move[Cave[y-1][x+1]]) goto android_ne;
-                                       break;
-                               case 6: /* south west */
-                                       if(tab_android_move[Cave[y+1][x-1]]) goto android_sw;
-                                       if(tab_android_move[Cave[y][x-1]]) goto android_w;
-                                       if(tab_android_move[Cave[y+1][x]]) goto android_s;
-                                       break;
-                               case 7: /* south */
-                                       if(tab_android_move[Cave[y+1][x]]) goto android_s;
-                                       if(tab_android_move[Cave[y+1][x-1]]) goto android_sw;
-                                       if(tab_android_move[Cave[y+1][x+1]]) goto android_se;
-                                       break;
-                               case 8: /* south east */
-                                       if(tab_android_move[Cave[y+1][x+1]]) goto android_se;
-                                       if(tab_android_move[Cave[y+1][x]]) goto android_s;
-                                       if(tab_android_move[Cave[y][x+1]]) goto android_e;
-                                       break;
-                               }
-                       } else {
-                               switch(temp) { /* attempt counter clockwise move first if direct path is blocked */
-                               case 0: /* north west */
-                                       if(tab_android_move[Cave[y-1][x-1]]) goto android_nw;
-                                       if(tab_android_move[Cave[y][x-1]]) goto android_w;
-                                       if(tab_android_move[Cave[y-1][x]]) goto android_n;
-                                       break;
-                               case 1: /* north */
-                                       if(tab_android_move[Cave[y-1][x]]) goto android_n;
-                                       if(tab_android_move[Cave[y-1][x-1]]) goto android_nw;
-                                       if(tab_android_move[Cave[y-1][x+1]]) goto android_ne;
-                                       break;
-                               case 2: /* north east */
-                                       if(tab_android_move[Cave[y-1][x+1]]) goto android_ne;
-                                       if(tab_android_move[Cave[y-1][x]]) goto android_n;
-                                       if(tab_android_move[Cave[y][x+1]]) goto android_e;
-                                       break;
-                               case 3: /* west */
-                                       if(tab_android_move[Cave[y][x-1]]) goto android_w;
-                                       if(tab_android_move[Cave[y+1][x-1]]) goto android_sw;
-                                       if(tab_android_move[Cave[y-1][x-1]]) goto android_nw;
-                                       break;
-                               case 4: /* nowhere */
-                                       break;
-                               case 5: /* east */
-                                       if(tab_android_move[Cave[y][x+1]]) goto android_e;
-                                       if(tab_android_move[Cave[y-1][x+1]]) goto android_ne;
-                                       if(tab_android_move[Cave[y+1][x+1]]) goto android_se;
-                                       break;
-                               case 6: /* south west */
-                                       if(tab_android_move[Cave[y+1][x-1]]) goto android_sw;
-                                       if(tab_android_move[Cave[y+1][x]]) goto android_s;
-                                       if(tab_android_move[Cave[y][x-1]]) goto android_w;
-                                       break;
-                               case 7: /* south */
-                                       if(tab_android_move[Cave[y+1][x]]) goto android_s;
-                                       if(tab_android_move[Cave[y+1][x+1]]) goto android_se;
-                                       if(tab_android_move[Cave[y+1][x-1]]) goto android_sw;
-                                       break;
-                               case 8: /* south east */
-                                       if(tab_android_move[Cave[y+1][x+1]]) goto android_se;
-                                       if(tab_android_move[Cave[y][x+1]]) goto android_e;
-                                       if(tab_android_move[Cave[y+1][x]]) goto android_s;
-                                       break;
-                               }
-                       }
-               }
-       android_still:
-               Next[y][x] = Xandroid;
-               goto loop;
-       android_n:
-               Cave[y][x] = Yandroid_nB;
-               Cave[y-1][x] = Yandroid_n;
-               Next[y-1][x] = Xandroid;
-               PLAY(SAMPLE_tank);
-               goto loop;
-       android_ne:
-               Cave[y][x] = Yandroid_neB;
-               Cave[y-1][x+1] = Yandroid_ne;
-               Next[y-1][x+1] = Xandroid;
-               PLAY(SAMPLE_tank);
-               goto loop;
-       android_e:
-               Cave[y][x] = Yandroid_eB;
-               Cave[y][x+1] = Yandroid_e;
-               Next[y][x+1] = Xandroid;
-               PLAY(SAMPLE_tank);
-               goto loop;
-       android_se:
-               Cave[y][x] = Yandroid_seB;
-               Cave[y+1][x+1] = Yandroid_se;
-               Next[y+1][x+1] = Xandroid;
-               PLAY(SAMPLE_tank);
-               goto loop;
-       android_s:
-               Cave[y][x] = Yandroid_sB;
-               Cave[y+1][x] = Yandroid_s;
-               Next[y+1][x] = Xandroid;
-               PLAY(SAMPLE_tank);
-               goto loop;
-       android_sw:
-               Cave[y][x] = Yandroid_swB;
-               Cave[y+1][x-1] = Yandroid_sw;
-               Next[y+1][x-1] = Xandroid;
-               PLAY(SAMPLE_tank);
-               goto loop;
-       android_w:
-               Cave[y][x] = Yandroid_wB;
-               Cave[y][x-1] = Yandroid_w;
-               Next[y][x-1] = Xandroid;
-               PLAY(SAMPLE_tank);
-               goto loop;
-       android_nw:
-               Cave[y][x] = Yandroid_nwB;
-               Cave[y-1][x-1] = Yandroid_nw;
-               Next[y-1][x-1] = Xandroid;
-               PLAY(SAMPLE_tank);
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xandroid_1_n:
-               switch(Cave[y-1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yandroid_nB;
-                       if(Cave[y-2][x+1] == Xblank) Cave[y-2][x+1] = Yacid_splash_eB;
-                       if(Cave[y-2][x-1] == Xblank) Cave[y-2][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yandroid_nB;
-                       Cave[y-1][x] = Yandroid_n;
-                       Next[y][x] = Xblank;
-                       Next[y-1][x] = Xandroid;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto android;
-               }
-       case Xandroid_2_n:
-               switch(Cave[y-1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yandroid_nB;
-                       if(Cave[y-2][x+1] == Xblank) Cave[y-2][x+1] = Yacid_splash_eB;
-                       if(Cave[y-2][x-1] == Xblank) Cave[y-2][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yandroid_nB;
-                       Cave[y-1][x] = Yandroid_n;
-                       Next[y][x] = Xblank;
-                       Next[y-1][x] = Xandroid_1_n;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto android;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xandroid_1_e:
-               switch(Cave[y][x+1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yandroid_eB;
-                       if(Cave[y-1][x+2] == Xblank) Cave[y-1][x+2] = Yacid_splash_eB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yandroid_eB;
-                       Cave[y][x+1] = Yandroid_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xandroid;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto android;
-               }
-       case Xandroid_2_e:
-               switch(Cave[y][x+1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yandroid_eB;
-                       if(Cave[y-1][x+2] == Xblank) Cave[y-1][x+2] = Yacid_splash_eB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yandroid_eB;
-                       Cave[y][x+1] = Yandroid_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xandroid_1_e;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto android;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xandroid_1_s:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yandroid_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yandroid_sB;
-                       Cave[y+1][x] = Yandroid_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xandroid;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto android;
-               }
-       case Xandroid_2_s:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yandroid_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yandroid_sB;
-                       Cave[y+1][x] = Yandroid_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xandroid_1_s;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto android;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xandroid_1_w:
-               switch(Cave[y][x-1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yandroid_wB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_eB;
-                       if(Cave[y-1][x-2] == Xblank) Cave[y-1][x-2] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yandroid_wB;
-                       Cave[y][x-1] = Yandroid_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xandroid;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto android;
-               }
-       case Xandroid_2_w:
-               switch(Cave[y][x-1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yandroid_wB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_eB;
-                       if(Cave[y-1][x-2] == Xblank) Cave[y-1][x-2] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yandroid_wB;
-                       Cave[y][x-1] = Yandroid_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xandroid_1_w;
-                       PLAY(SAMPLE_tank);
-                       goto loop;
-               default:
-                       goto android;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xspring:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yspring_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-                       Cave[y][x] = Yspring_sB;
-                       Cave[y+1][x] = Yspring_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xspring_fall;
-                       goto loop;
-               case Xspring:
-               case Xspring_pause:
-               case Xspring_e:
-               case Xspring_w:
-               case Xandroid:
-               case Xandroid_1_n:
-               case Xandroid_2_n:
-               case Xandroid_1_e:
-               case Xandroid_2_e:
-               case Xandroid_1_s:
-               case Xandroid_2_s:
-               case Xandroid_1_w:
-               case Xandroid_2_w:
-               case Xstone:
-               case Xstone_pause:
-               case Xemerald:
-               case Xemerald_pause:
-               case Xdiamond:
-               case Xdiamond_pause:
-               case Xbomb:
-               case Xbomb_pause:
-               case Xballoon:
-               case Xacid_ne:
-               case Xacid_nw:
-               case Xball_1:
-               case Xball_2:
-               case Xnut:
-               case Xnut_pause:
-               case Xgrow_ns:
-               case Xgrow_ew:
-               case Xkey_1:
-               case Xkey_2:
-               case Xkey_3:
-               case Xkey_4:
-               case Xkey_5:
-               case Xkey_6:
-               case Xkey_7:
-               case Xkey_8:
-               case Xbumper:
-               case Xswitch:
-               case Xround_wall_1:
-               case Xround_wall_2:
-               case Xround_wall_3:
-               case Xround_wall_4:
-                       if(RANDOM & 1) {
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Yspring_eB;
-                                       Cave[y][x+1] = Yspring_e;
-                                       if(Cave[y+1][x] == Xbumper) Cave[y+1][x] = XbumperB;
-                                       Next[y][x] = Xblank;
-#ifdef BAD_SPRING
-                                       Next[y][x+1] = Xspring_e;
-#else
-                                       Next[y][x+1] = Xspring_pause;
+         Cave[y][x] = Ystone_sB;
+         Cave[y+1][x] = Ystone_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xstone_fall;
+         goto loop;
+
+       default:
+         Cave[y][x] = Xstone;
+         Next[y][x] = Xstone;
+         goto loop;
+       }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xstone_fall:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ystone_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Zplayer:
+#if 1
+        case Xfake_acid_1:
+        case Xfake_acid_2:
+        case Xfake_acid_3:
+        case Xfake_acid_4:
+        case Xfake_acid_5:
+        case Xfake_acid_6:
+        case Xfake_acid_7:
+        case Xfake_acid_8:
 #endif
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Yspring_wB;
-                                       Cave[y][x-1] = Yspring_w;
-                                       if(Cave[y+1][x] == Xbumper) Cave[y+1][x] = XbumperB;
-                                       Next[y][x] = Xblank;
-#ifdef BAD_SPRING
-                                       Next[y][x-1] = Xspring_w;
-#else
-                                       Next[y][x-1] = Xspring_pause;
+         Cave[y][x] = Ystone_sB;
+         Cave[y+1][x] = Ystone_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xstone_fall;
+         goto loop;
+
+       case Xnut:
+       case Xnut_pause:
+         Cave[y+1][x] = Yemerald_stone;
+         Next[y][x] = Xstone;
+         Next[y+1][x] = Xemerald;
+         play_element_sound(x, y, SAMPLE_crack, Xnut);
+         score += lev.nut_score;
+         goto loop;
+
+       case Xbug_n:
+       case Xbug_e:
+       case Xbug_s:
+       case Xbug_w:
+       case Xbug_gon:
+       case Xbug_goe:
+       case Xbug_gos:
+       case Xbug_gow:
+         Cave[y][x] = Ystone_sB;
+         Cave[y+1][x] = Ybug_stone;
+         Next[y+1][x] = Znormal;
+         Boom[y][x-1] = Xemerald;
+         Boom[y][x] = Xemerald;
+         Boom[y][x+1] = Xemerald;
+         Boom[y+1][x-1] = Xemerald;
+         Boom[y+1][x] = Xdiamond;
+         Boom[y+1][x+1] = Xemerald;
+         Boom[y+2][x-1] = Xemerald;
+         Boom[y+2][x] = Xemerald;
+         Boom[y+2][x+1] = Xemerald;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
 #endif
-                                       goto loop;
-                               }
-                       } else {
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Yspring_wB;
-                                       Cave[y][x-1] = Yspring_w;
-                                       if(Cave[y+1][x] == Xbumper) Cave[y+1][x] = XbumperB;
-                                       Next[y][x] = Xblank;
-#ifdef BAD_SPRING
-                                       Next[y][x-1] = Xspring_w;
-#else
-                                       Next[y][x-1] = Xspring_pause;
+         score += lev.bug_score;
+         goto loop;
+
+       case Xtank_n:
+       case Xtank_e:
+       case Xtank_s:
+       case Xtank_w:
+       case Xtank_gon:
+       case Xtank_goe:
+       case Xtank_gos:
+       case Xtank_gow:
+         Cave[y][x] = Ystone_sB;
+         Cave[y+1][x] = Ytank_stone;
+         Next[y+1][x] = Znormal;
+         Boom[y][x-1] = Xblank;
+         Boom[y][x] = Xblank;
+         Boom[y][x+1] = Xblank;
+         Boom[y+1][x-1] = Xblank;
+         Boom[y+1][x] = Xblank;
+         Boom[y+1][x+1] = Xblank;
+         Boom[y+2][x-1] = Xblank;
+         Boom[y+2][x] = Xblank;
+         Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
 #endif
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Yspring_eB;
-                                       Cave[y][x+1] = Yspring_e;
-                                       if(Cave[y+1][x] == Xbumper) Cave[y+1][x] = XbumperB;
-                                       Next[y][x] = Xblank;
-#ifdef BAD_SPRING
-                                       Next[y][x+1] = Xspring_e;
-#else
-                                       Next[y][x+1] = Xspring_pause;
+         score += lev.tank_score;
+         goto loop;
+
+       case Xspring:
+         if (RANDOM & 1)
+         {
+           switch (Cave[y+1][x+1])
+           {
+             case Xblank:
+             case Yacid_splash_eB:
+             case Yacid_splash_wB:
+             case Xalien:
+             case Xalien_pause:
+               Cave[y+1][x] = Xspring_e;
+               break;
+
+             default:
+               Cave[y+1][x] = Xspring_w;
+               break;
+           }
+         }
+         else
+         {
+           switch (Cave[y+1][x-1])
+           {
+             case Xblank:
+             case Yacid_splash_eB:
+             case Yacid_splash_wB:
+             case Xalien:
+             case Xalien_pause:
+               Cave[y+1][x] = Xspring_w;
+               break;
+             default:
+               Cave[y+1][x] = Xspring_e;
+               break;
+           }
+         }
+
+         Next[y][x] = Xstone;
+         goto loop;
+
+       case Xeater_n:
+       case Xeater_e:
+       case Xeater_s:
+       case Xeater_w:
+         Cave[y][x] = Ystone_sB;
+         Cave[y+1][x] = Yeater_stone;
+         Next[y+1][x] = Znormal;
+         Boom[y][x-1] = lev.eater_array[lev.eater_pos][0];
+         Boom[y][x] = lev.eater_array[lev.eater_pos][1];
+         Boom[y][x+1] = lev.eater_array[lev.eater_pos][2];
+         Boom[y+1][x-1] = lev.eater_array[lev.eater_pos][3];
+         Boom[y+1][x] = lev.eater_array[lev.eater_pos][4];
+         Boom[y+1][x+1] = lev.eater_array[lev.eater_pos][5];
+         Boom[y+2][x-1] = lev.eater_array[lev.eater_pos][6];
+         Boom[y+2][x] = lev.eater_array[lev.eater_pos][7];
+         Boom[y+2][x+1] = lev.eater_array[lev.eater_pos][8];
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
 #endif
-                                       goto loop;
-                               }
-                       }
-               default:
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xspring_pause:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yspring_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yspring_sB;
-                       Cave[y+1][x] = Yspring_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xspring_fall;
-                       goto loop;
-               default:
-                       Cave[y][x] = Xspring;
-                       Next[y][x] = Xspring;
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xspring_e:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yspring_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yspring_sB;
-                       Cave[y+1][x] = Yspring_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xspring_fall;
-                       goto loop;
-               case Xbumper:
-                       Cave[y+1][x] = XbumperB;
-               }
-               switch(Cave[y][x+1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yspring_eB;
-                       if(Cave[y-1][x+2] == Xblank) Cave[y-1][x+2] = Yacid_splash_eB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Yalien_nB:
-               case Yalien_eB:
-               case Yalien_sB:
-               case Yalien_wB:
-                       Cave[y][x] = Yspring_eB;
-                       Cave[y][x+1] = Yspring_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xspring_e;
-                       goto loop;
-               case Xalien:
-               case Xalien_pause:
-               case Yalien_n:
-               case Yalien_e:
-               case Yalien_s:
-               case Yalien_w:
-                       Cave[y][x] = Yspring_kill_eB;
-                       Cave[y][x+1] = Yspring_kill_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xspring_e;
-                       play[SAMPLE_slurp] = 1;
-                       score += lev.slurp_score;
-                       goto loop;
-               case Xbumper:
-               case XbumperB:
-                       Cave[y][x+1] = XbumperB;
-                       Next[y][x] = Xspring_w;
-                       PLAY(SAMPLE_spring);
-                       goto loop;
-               default:
-                       Cave[y][x] = Xspring;
-                       Next[y][x] = Xspring;
-                       PLAY(SAMPLE_spring);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xspring_w:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yspring_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yspring_sB;
-                       Cave[y+1][x] = Yspring_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xspring_fall;
-                       goto loop;
-               case Xbumper:
-                       Cave[y+1][x] = XbumperB;
-               }
-               switch(Cave[y][x-1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yspring_wB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_eB;
-                       if(Cave[y-1][x-2] == Xblank) Cave[y-1][x-2] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Yalien_nB:
-               case Yalien_eB:
-               case Yalien_sB:
-               case Yalien_wB:
-                       Cave[y][x] = Yspring_wB;
-                       Cave[y][x-1] = Yspring_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xspring_w;
-                       goto loop;
-               case Xalien:
-               case Xalien_pause:
-               case Yalien_n:
-               case Yalien_e:
-               case Yalien_s:
-               case Yalien_w:
-                       Cave[y][x] = Yspring_kill_wB;
-                       Cave[y][x-1] = Yspring_kill_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xspring_w;
-                       play[SAMPLE_slurp] = 1;
-                       score += lev.slurp_score;
-                       goto loop;
-               case Xbumper:
-               case XbumperB:
-                       Cave[y][x-1] = XbumperB;
-                       Next[y][x] = Xspring_e;
-                       PLAY(SAMPLE_spring);
-                       goto loop;
-               default:
-                       Cave[y][x] = Xspring;
-                       Next[y][x] = Xspring;
-                       PLAY(SAMPLE_spring);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xspring_fall:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yspring_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Zplayer:
-                       Cave[y][x] = Yspring_sB;
-                       Cave[y+1][x] = Yspring_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xspring_fall;
-                       goto loop;
-               case Xbomb:
-               case Xbomb_pause:
-                       Cave[y+1][x] = Ybomb_eat;
-                       Next[y+1][x] = Znormal;
-                       Boom[y][x-1] = Xblank;
-                       Boom[y][x] = Xblank;
-                       Boom[y][x+1] = Xblank;
-                       Boom[y+1][x-1] = Xblank;
-                       Boom[y+1][x] = Xblank;
-                       Boom[y+1][x+1] = Xblank;
-                       Boom[y+2][x-1] = Xblank;
-                       Boom[y+2][x] = Xblank;
-                       Boom[y+2][x+1] = Xblank;
-                       goto loop;
-               case Xbug_n:
-               case Xbug_e:
-               case Xbug_s:
-               case Xbug_w:
-               case Xbug_gon:
-               case Xbug_goe:
-               case Xbug_gos:
-               case Xbug_gow:
-                       Cave[y][x] = Yspring_sB;
-                       Cave[y+1][x] = Ybug_spring;
-                       Next[y+1][x] = Znormal;
-                       Boom[y][x-1] = Xemerald;
-                       Boom[y][x] = Xemerald;
-                       Boom[y][x+1] = Xemerald;
-                       Boom[y+1][x-1] = Xemerald;
-                       Boom[y+1][x] = Xdiamond;
-                       Boom[y+1][x+1] = Xemerald;
-                       Boom[y+2][x-1] = Xemerald;
-                       Boom[y+2][x] = Xemerald;
-                       Boom[y+2][x+1] = Xemerald;
-                       score += lev.bug_score;
-                       goto loop;
-               case Xtank_n:
-               case Xtank_e:
-               case Xtank_s:
-               case Xtank_w:
-               case Xtank_gon:
-               case Xtank_goe:
-               case Xtank_gos:
-               case Xtank_gow:
-                       Cave[y][x] = Yspring_sB;
-                       Cave[y+1][x] = Ytank_spring;
-                       Next[y+1][x] = Znormal;
-                       Boom[y][x-1] = Xblank;
-                       Boom[y][x] = Xblank;
-                       Boom[y][x+1] = Xblank;
-                       Boom[y+1][x-1] = Xblank;
-                       Boom[y+1][x] = Xblank;
-                       Boom[y+1][x+1] = Xblank;
-                       Boom[y+2][x-1] = Xblank;
-                       Boom[y+2][x] = Xblank;
-                       Boom[y+2][x+1] = Xblank;
-                       score += lev.tank_score;
-                       goto loop;
-               case Xeater_n:
-               case Xeater_e:
-               case Xeater_s:
-               case Xeater_w:
-                       Cave[y][x] = Yspring_sB;
-                       Cave[y+1][x] = Yeater_spring;
-                       Next[y+1][x] = Znormal;
-                       Boom[y][x-1] = lev.eater_array[lev.eater_pos][0];
-                       Boom[y][x] = lev.eater_array[lev.eater_pos][1];
-                       Boom[y][x+1] = lev.eater_array[lev.eater_pos][2];
-                       Boom[y+1][x-1] = lev.eater_array[lev.eater_pos][3];
-                       Boom[y+1][x] = lev.eater_array[lev.eater_pos][4];
-                       Boom[y+1][x+1] = lev.eater_array[lev.eater_pos][5];
-                       Boom[y+2][x-1] = lev.eater_array[lev.eater_pos][6];
-                       Boom[y+2][x] = lev.eater_array[lev.eater_pos][7];
-                       Boom[y+2][x+1] = lev.eater_array[lev.eater_pos][8];
-                       lev.eater_pos = (lev.eater_pos + 1) & 7;
-                       score += lev.eater_score;
-                       goto loop;
-               case Xalien:
-               case Xalien_pause:
-                       Cave[y][x] = Yspring_sB;
-                       Cave[y+1][x] = Yalien_spring;
-                       Next[y+1][x] = Znormal;
-                       Boom[y][x-1] = Xblank;
-                       Boom[y][x] = Xblank;
-                       Boom[y][x+1] = Xblank;
-                       Boom[y+1][x-1] = Xblank;
-                       Boom[y+1][x] = Xblank;
-                       Boom[y+1][x+1] = Xblank;
-                       Boom[y+2][x-1] = Xblank;
-                       Boom[y+2][x] = Xblank;
-                       Boom[y+2][x+1] = Xblank;
-                       score += lev.alien_score;
-                       goto loop;
-               default:
-                       Cave[y][x] = Xspring;
-                       Next[y][x] = Xspring;
-                       PLAY(SAMPLE_spring);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xeater_n:
-               if(Cave[y][x+1] == Xdiamond) {
-                       Cave[y][x+1] = Ydiamond_eat;
-                       Next[y][x+1] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y+1][x] == Xdiamond) {
-                       Cave[y+1][x] = Ydiamond_eat;
-                       Next[y+1][x] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y][x-1] == Xdiamond) {
-                       Cave[y][x-1] = Ydiamond_eat;
-                       Next[y][x-1] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y-1][x] == Xdiamond) {
-                       Cave[y-1][x] = Ydiamond_eat;
-                       Next[y-1][x] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               switch(Cave[y-1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yeater_nB;
-                       if(Cave[y-2][x+1] == Xblank) Cave[y-2][x+1] = Yacid_splash_eB;
-                       if(Cave[y-2][x-1] == Xblank) Cave[y-2][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Yeater_nB;
-                       Cave[y-1][x] = Yeater_n;
-                       Next[y][x] = Xblank;
-                       Next[y-1][x] = Xeater_n;
-                       goto loop;
-               default:
-                       Next[y][x] = RANDOM & 1 ? Xeater_e : Xeater_w;
-                       PLAY(SAMPLE_eater);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xeater_e:
-               if(Cave[y+1][x] == Xdiamond) {
-                       Cave[y+1][x] = Ydiamond_eat;
-                       Next[y+1][x] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y][x-1] == Xdiamond) {
-                       Cave[y][x-1] = Ydiamond_eat;
-                       Next[y][x-1] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y-1][x] == Xdiamond) {
-                       Cave[y-1][x] = Ydiamond_eat;
-                       Next[y-1][x] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y][x+1] == Xdiamond) {
-                       Cave[y][x+1] = Ydiamond_eat;
-                       Next[y][x+1] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               switch(Cave[y][x+1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yeater_eB;
-                       if(Cave[y-1][x+2] == Xblank) Cave[y-1][x+2] = Yacid_splash_eB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Yeater_eB;
-                       Cave[y][x+1] = Yeater_e;
-                       Next[y][x] = Xblank;
-                       Next[y][x+1] = Xeater_e;
-                       goto loop;
-               default:
-                       Next[y][x] = RANDOM & 1 ? Xeater_n : Xeater_s;
-                       PLAY(SAMPLE_eater);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xeater_s:
-               if(Cave[y][x-1] == Xdiamond) {
-                       Cave[y][x-1] = Ydiamond_eat;
-                       Next[y][x-1] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y-1][x] == Xdiamond) {
-                       Cave[y-1][x] = Ydiamond_eat;
-                       Next[y-1][x] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y][x+1] == Xdiamond) {
-                       Cave[y][x+1] = Ydiamond_eat;
-                       Next[y][x+1] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y+1][x] == Xdiamond) {
-                       Cave[y+1][x] = Ydiamond_eat;
-                       Next[y+1][x] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yeater_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Yeater_sB;
-                       Cave[y+1][x] = Yeater_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xeater_s;
-                       goto loop;
-               default:
-                       Next[y][x] = RANDOM & 1 ? Xeater_e : Xeater_w;
-                       PLAY(SAMPLE_eater);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xeater_w:
-               if(Cave[y-1][x] == Xdiamond) {
-                       Cave[y-1][x] = Ydiamond_eat;
-                       Next[y-1][x] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y][x+1] == Xdiamond) {
-                       Cave[y][x+1] = Ydiamond_eat;
-                       Next[y][x+1] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y+1][x] == Xdiamond) {
-                       Cave[y+1][x] = Ydiamond_eat;
-                       Next[y+1][x] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               if(Cave[y][x-1] == Xdiamond) {
-                       Cave[y][x-1] = Ydiamond_eat;
-                       Next[y][x-1] = Xblank;
-                       play[SAMPLE_eater] = 1;
-                       goto loop;
-               }
-               switch(Cave[y][x-1]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yeater_wB;
-                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_eB;
-                       if(Cave[y-1][x-2] == Xblank) Cave[y-1][x-2] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Yeater_wB;
-                       Cave[y][x-1] = Yeater_w;
-                       Next[y][x] = Xblank;
-                       Next[y][x-1] = Xeater_w;
-                       goto loop;
-               default:
-                       Next[y][x] = RANDOM & 1 ? Xeater_n : Xeater_s;
-                       PLAY(SAMPLE_eater);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xalien:
-               if(lev.wheel_cnt) {
-                       dx = lev.wheel_x;
-                       dy = lev.wheel_y;
-               } else if(ply1.alive && ply2.alive) {
-                       if( (ply1.x > x ? ply1.x - x : x - ply1.x) + (ply1.y > y ? ply1.y - y : y - ply1.y) < (ply2.x > x ? ply2.x - x : x - ply2.x) + (ply2.y > y ? ply2.y - y : y - ply2.y) ) {
-                               dx = ply1.x;
-                               dy = ply1.y;
-                       } else {
-                               dx = ply2.x;
-                               dy = ply2.y;
-                       }
-               } else if(ply1.alive) {
-                       dx = ply1.x;
-                       dy = ply1.y;
-               } else if(ply2.alive) {
-                       dx = ply2.x;
-                       dy = ply2.y;
-               } else {
-                       dx = 0;
-                       dy = 0;
-               }
-               if(RANDOM & 1) {
-                       if(y > dy) {
-                               switch(Cave[y-1][x]) {
-                               case Xacid_1:
-                               case Xacid_2:
-                               case Xacid_3:
-                               case Xacid_4:
-                               case Xacid_5:
-                               case Xacid_6:
-                               case Xacid_7:
-                               case Xacid_8:
-                                       Cave[y][x] = Yalien_nB;
-                                       if(Cave[y-2][x+1] == Xblank) Cave[y-2][x+1] = Yacid_splash_eB;
-                                       if(Cave[y-2][x-1] == Xblank) Cave[y-2][x-1] = Yacid_splash_wB;
-                                       Next[y][x] = Xblank;
-                                       PLAY(SAMPLE_acid);
-                                       goto loop;
-                               case Xblank:
-                               case Yacid_splash_eB:
-                               case Yacid_splash_wB:
-                               case Xplant:
-                               case Yplant:
-                               case Zplayer:
-                                       Cave[y][x] = Yalien_nB;
-                                       Cave[y-1][x] = Yalien_n;
-                                       Next[y][x] = Xblank;
-                                       Next[y-1][x] = Xalien_pause;
-                                       PLAY(SAMPLE_alien);
-                                       goto loop;
-                               }
-                       } else if(y < dy) {
-                               switch(Cave[y+1][x]) {
-                               case Xacid_1:
-                               case Xacid_2:
-                               case Xacid_3:
-                               case Xacid_4:
-                               case Xacid_5:
-                               case Xacid_6:
-                               case Xacid_7:
-                               case Xacid_8:
-                                       Cave[y][x] = Yalien_sB;
-                                       Next[y][x] = Xblank;
-                                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                                       PLAY(SAMPLE_acid);
-                                       goto loop;
-                               case Xblank:
-                               case Yacid_splash_eB:
-                               case Yacid_splash_wB:
-                               case Xplant:
-                               case Yplant:
-                               case Zplayer:
-                                       Cave[y][x] = Yalien_sB;
-                                       Cave[y+1][x] = Yalien_s;
-                                       Next[y][x] = Xblank;
-                                       Next[y+1][x] = Xalien_pause;
-                                       PLAY(SAMPLE_alien);
-                                       goto loop;
-                               }
-                       }
-               } else {
-                       if(x < dx) {
-                               switch(Cave[y][x+1]) {
-                               case Xacid_1:
-                               case Xacid_2:
-                               case Xacid_3:
-                               case Xacid_4:
-                               case Xacid_5:
-                               case Xacid_6:
-                               case Xacid_7:
-                               case Xacid_8:
-                                       Cave[y][x] = Yalien_eB;
-                                       if(Cave[y-1][x+2] == Xblank) Cave[y-1][x+2] = Yacid_splash_eB;
-                                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_wB;
-                                       Next[y][x] = Xblank;
-                                       PLAY(SAMPLE_acid);
-                                       goto loop;
-                               case Xblank:
-                               case Yacid_splash_eB:
-                               case Yacid_splash_wB:
-                               case Xplant:
-                               case Yplant:
-                               case Zplayer:
-                                       Cave[y][x] = Yalien_eB;
-                                       Cave[y][x+1] = Yalien_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xalien_pause;
-                                       PLAY(SAMPLE_alien);
-                                       goto loop;
-                               }
-                       } else if(x > dx) {
-                               switch(Cave[y][x-1]) {
-                               case Xacid_1:
-                               case Xacid_2:
-                               case Xacid_3:
-                               case Xacid_4:
-                               case Xacid_5:
-                               case Xacid_6:
-                               case Xacid_7:
-                               case Xacid_8:
-                                       Cave[y][x] = Yalien_wB;
-                                       if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_eB;
-                                       if(Cave[y-1][x-2] == Xblank) Cave[y-1][x-2] = Yacid_splash_wB;
-                                       Next[y][x] = Xblank;
-                                       PLAY(SAMPLE_acid);
-                                       goto loop;
-                               case Xblank:
-                               case Yacid_splash_eB:
-                               case Yacid_splash_wB:
-                               case Xplant:
-                               case Yplant:
-                               case Zplayer:
-                                       Cave[y][x] = Yalien_wB;
-                                       Cave[y][x-1] = Yalien_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xalien_pause;
-                                       PLAY(SAMPLE_alien);
-                                       goto loop;
-                               }
-                       }
-               }
-               goto loop;
-       case Xalien_pause:
-               Next[y][x] = Xalien;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xemerald:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yemerald_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yemerald_sB;
-                       Cave[y+1][x] = Yemerald_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xemerald_fall;
-                       goto loop;
-               case Xspring:
-               case Xspring_pause:
-               case Xspring_e:
-               case Xspring_w:
-               case Xandroid:
-               case Xandroid_1_n:
-               case Xandroid_2_n:
-               case Xandroid_1_e:
-               case Xandroid_2_e:
-               case Xandroid_1_s:
-               case Xandroid_2_s:
-               case Xandroid_1_w:
-               case Xandroid_2_w:
-               case Xstone:
-               case Xstone_pause:
-               case Xemerald:
-               case Xemerald_pause:
-               case Xdiamond:
-               case Xdiamond_pause:
-               case Xbomb:
-               case Xbomb_pause:
-               case Xballoon:
-               case Xacid_ne:
-               case Xacid_nw:
-               case Xball_1:
-               case Xball_2:
-               case Xnut:
-               case Xnut_pause:
-               case Xgrow_ns:
-               case Xgrow_ew:
-               case Xwonderwall:
-               case Xkey_1:
-               case Xkey_2:
-               case Xkey_3:
-               case Xkey_4:
-               case Xkey_5:
-               case Xkey_6:
-               case Xkey_7:
-               case Xkey_8:
-               case Xbumper:
-               case Xswitch:
-               case Xsteel_1:
-               case Xsteel_2:
-               case Xsteel_3:
-               case Xsteel_4:
-               case Xwall_1:
-               case Xwall_2:
-               case Xwall_3:
-               case Xwall_4:
-               case Xround_wall_1:
-               case Xround_wall_2:
-               case Xround_wall_3:
-               case Xround_wall_4:
-                       if(RANDOM & 1) {
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Yemerald_eB;
-                                       Cave[y][x+1] = Yemerald_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xemerald_pause;
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Yemerald_wB;
-                                       Cave[y][x-1] = Yemerald_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xemerald_pause;
-                                       goto loop;
-                               }
-                       } else {
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Yemerald_wB;
-                                       Cave[y][x-1] = Yemerald_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xemerald_pause;
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Yemerald_eB;
-                                       Cave[y][x+1] = Yemerald_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xemerald_pause;
-                                       goto loop;
-                               }
-                       }
-               default:
-                       if(++lev.shine_cnt > 50) {
-                               lev.shine_cnt = RANDOM & 7;
-                               Cave[y][x] = Xemerald_shine;
-                       }
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xemerald_pause:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yemerald_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Yemerald_sB;
-                       Cave[y+1][x] = Yemerald_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xemerald_fall;
-                       goto loop;
-               default:
-                       Cave[y][x] = Xemerald;
-                       Next[y][x] = Xemerald;
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xemerald_fall:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Yemerald_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Zplayer:
-                       Cave[y][x] = Yemerald_sB;
-                       Cave[y+1][x] = Yemerald_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xemerald_fall;
-                       goto loop;
-               case Xwonderwall:
-                       if(lev.wonderwall_time) {
-                               lev.wonderwall_state = 1;
-                               Cave[y][x] = Yemerald_sB;
-                               if(tab_blank[Cave[y+2][x]]) {
-                                       Cave[y+2][x] = Ydiamond_s;
-                                       Next[y+2][x] = Xdiamond_fall;
-                               }
-                               Next[y][x] = Xblank;
-                               play[SAMPLE_squash] = 1;
-                               goto loop;
-                       }
-               default:
-                       Cave[y][x] = Xemerald;
-                       Next[y][x] = Xemerald;
-                       PLAY(SAMPLE_diamond);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xdiamond:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ydiamond_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Ydiamond_sB;
-                       Cave[y+1][x] = Ydiamond_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xdiamond_fall;
-                       goto loop;
-               case Xspring:
-               case Xspring_pause:
-               case Xspring_e:
-               case Xspring_w:
-               case Xandroid:
-               case Xandroid_1_n:
-               case Xandroid_2_n:
-               case Xandroid_1_e:
-               case Xandroid_2_e:
-               case Xandroid_1_s:
-               case Xandroid_2_s:
-               case Xandroid_1_w:
-               case Xandroid_2_w:
-               case Xstone:
-               case Xstone_pause:
-               case Xemerald:
-               case Xemerald_pause:
-               case Xdiamond:
-               case Xdiamond_pause:
-               case Xbomb:
-               case Xbomb_pause:
-               case Xballoon:
-               case Xacid_ne:
-               case Xacid_nw:
-               case Xball_1:
-               case Xball_2:
-               case Xnut:
-               case Xnut_pause:
-               case Xgrow_ns:
-               case Xgrow_ew:
-               case Xwonderwall:
-               case Xkey_1:
-               case Xkey_2:
-               case Xkey_3:
-               case Xkey_4:
-               case Xkey_5:
-               case Xkey_6:
-               case Xkey_7:
-               case Xkey_8:
-               case Xbumper:
-               case Xswitch:
-               case Xsteel_1:
-               case Xsteel_2:
-               case Xsteel_3:
-               case Xsteel_4:
-               case Xwall_1:
-               case Xwall_2:
-               case Xwall_3:
-               case Xwall_4:
-               case Xround_wall_1:
-               case Xround_wall_2:
-               case Xround_wall_3:
-               case Xround_wall_4:
-                       if(RANDOM & 1) {
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Ydiamond_eB;
-                                       Cave[y][x+1] = Ydiamond_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xdiamond_pause;
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Ydiamond_wB;
-                                       Cave[y][x-1] = Ydiamond_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xdiamond_pause;
-                                       goto loop;
-                               }
-                       } else {
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Ydiamond_wB;
-                                       Cave[y][x-1] = Ydiamond_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xdiamond_pause;
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Ydiamond_eB;
-                                       Cave[y][x+1] = Ydiamond_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xdiamond_pause;
-                                       goto loop;
-                               }
-                       }
-               default:
-                       if(++lev.shine_cnt > 50) {
-                               lev.shine_cnt = RANDOM & 7;
-                               Cave[y][x] = Xdiamond_shine;
-                       }
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xdiamond_pause:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ydiamond_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Ydiamond_sB;
-                       Cave[y+1][x] = Ydiamond_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xdiamond_fall;
-                       goto loop;
-               default:
-                       Cave[y][x] = Xdiamond;
-                       Next[y][x] = Xdiamond;
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xdiamond_fall:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ydiamond_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Zplayer:
-                       Cave[y][x] = Ydiamond_sB;
-                       Cave[y+1][x] = Ydiamond_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xdiamond_fall;
-                       goto loop;
-               case Xwonderwall:
-                       if(lev.wonderwall_time) {
-                               lev.wonderwall_state = 1;
-                               Cave[y][x] = Ydiamond_sB;
-                               if(tab_blank[Cave[y+2][x]]) {
-                                       Cave[y+2][x] = Ystone_s;
-                                       Next[y+2][x] = Xstone_fall;
-                               }
-                               Next[y][x] = Xblank;
-                               play[SAMPLE_squash] = 1;
-                               goto loop;
-                       }
-               default:
-                       Cave[y][x] = Xdiamond;
-                       Next[y][x] = Xdiamond;
-                       PLAY(SAMPLE_diamond);
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xdrip_fall:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ydrip_s1B;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xdrip_stretchB;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-               case Xplant:
-               case Yplant:
-               case Zplayer:
-                       Cave[y][x] = Ydrip_s1B;
-                       Cave[y+1][x] = Ydrip_s1;
-                       Next[y][x] = Xdrip_stretchB;
-                       Next[y+1][x] = Xdrip_stretch;
-                       goto loop;
-               default:
-                       switch(RANDOM & 7) {
-                       case 0: temp = Xameuba_1; break;
-                       case 1: temp = Xameuba_2; break;
-                       case 2: temp = Xameuba_3; break;
-                       case 3: temp = Xameuba_4; break;
-                       case 4: temp = Xameuba_5; break;
-                       case 5: temp = Xameuba_6; break;
-                       case 6: temp = Xameuba_7; break;
-                       case 7: temp = Xameuba_8; break;
-                       }
-                       Cave[y][x] = temp;
-                       Next[y][x] = temp;
-                       play[SAMPLE_drip] = 1;
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xdrip_stretch:
-               Cave[y][x] = Ydrip_s2;
-               Next[y][x] = Xdrip_fall;
-               goto loop;
-       case Xdrip_stretchB:
-               Cave[y][x] = Ydrip_s2B;
-               Next[y][x] = Xblank;
-               goto loop;
-       case Xdrip_eat:
-               Next[y][x] = Xdrip_fall;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xbomb:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ybomb_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Ybomb_sB;
-                       Cave[y+1][x] = Ybomb_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xbomb_fall;
-                       goto loop;
-               case Xspring:
-               case Xspring_pause:
-               case Xspring_e:
-               case Xspring_w:
-               case Xandroid:
-               case Xandroid_1_n:
-               case Xandroid_2_n:
-               case Xandroid_1_e:
-               case Xandroid_2_e:
-               case Xandroid_1_s:
-               case Xandroid_2_s:
-               case Xandroid_1_w:
-               case Xandroid_2_w:
-               case Xstone:
-               case Xstone_pause:
-               case Xemerald:
-               case Xemerald_pause:
-               case Xdiamond:
-               case Xdiamond_pause:
-               case Xbomb:
-               case Xbomb_pause:
-               case Xballoon:
-               case Xacid_ne:
-               case Xacid_nw:
-               case Xball_1:
-               case Xball_2:
-               case Xnut:
-               case Xnut_pause:
-               case Xgrow_ns:
-               case Xgrow_ew:
-               case Xkey_1:
-               case Xkey_2:
-               case Xkey_3:
-               case Xkey_4:
-               case Xkey_5:
-               case Xkey_6:
-               case Xkey_7:
-               case Xkey_8:
-               case Xbumper:
-               case Xswitch:
-               case Xround_wall_1:
-               case Xround_wall_2:
-               case Xround_wall_3:
-               case Xround_wall_4:
-                       if(RANDOM & 1) {
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Ybomb_eB;
-                                       Cave[y][x+1] = Ybomb_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xbomb_pause;
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Ybomb_wB;
-                                       Cave[y][x-1] = Ybomb_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xbomb_pause;
-                                       goto loop;
-                               }
-                       } else {
-                               if(tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]]) {
-                                       Cave[y][x] = Ybomb_wB;
-                                       Cave[y][x-1] = Ybomb_w;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x-1] = Xbomb_pause;
-                                       goto loop;
-                               }
-                               if(tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]]) {
-                                       Cave[y][x] = Ybomb_eB;
-                                       Cave[y][x+1] = Ybomb_e;
-                                       Next[y][x] = Xblank;
-                                       Next[y][x+1] = Xbomb_pause;
-                                       goto loop;
-                               }
-                       }
-               default:
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xbomb_pause:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ybomb_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Ybomb_sB;
-                       Cave[y+1][x] = Ybomb_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xbomb_fall;
-                       goto loop;
-               default:
-                       Cave[y][x] = Xbomb;
-                       Next[y][x] = Xbomb;
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xbomb_fall:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Ybomb_sB;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xblank;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Ybomb_sB;
-                       Cave[y+1][x] = Ybomb_s;
-                       Next[y][x] = Xblank;
-                       Next[y+1][x] = Xbomb_fall;
-                       goto loop;
-               default:
-                       Cave[y][x] = Ybomb_eat;
-                       Next[y][x] = Znormal;
-                       Boom[y-1][x-1] = Xblank;
-                       Boom[y-1][x] = Xblank;
-                       Boom[y-1][x+1] = Xblank;
-                       Boom[y][x-1] = Xblank;
-                       Boom[y][x] = Xblank;
-                       Boom[y][x+1] = Xblank;
-                       Boom[y+1][x-1] = Xblank;
-                       Boom[y+1][x] = Xblank;
-                       Boom[y+1][x+1] = Xblank;
-                       goto loop;
-               }
-/* ---------------------------------------------------------------------- */
-       case Xballoon:
-               if(lev.wind_cnt == 0) goto loop;
-               switch(lev.wind_direction) {
-               case 0: /* north */
-                       switch(Cave[y-1][x]) {
-                       case Xacid_1:
-                       case Xacid_2:
-                       case Xacid_3:
-                       case Xacid_4:
-                       case Xacid_5:
-                       case Xacid_6:
-                       case Xacid_7:
-                       case Xacid_8:
-                               Cave[y][x] = Yballoon_nB;
-                               if(Cave[y-2][x+1] == Xblank) Cave[y-2][x+1] = Yacid_splash_eB;
-                               if(Cave[y-2][x-1] == Xblank) Cave[y-2][x-1] = Yacid_splash_wB;
-                               Next[y][x] = Xblank;
-                               PLAY(SAMPLE_acid);
-                               goto loop;
-                       case Xblank:
-                       case Yacid_splash_eB:
-                       case Yacid_splash_wB:
-                               Cave[y][x] = Yballoon_nB;
-                               Cave[y-1][x] = Yballoon_n;
-                               Next[y][x] = Xblank;
-                               Next[y-1][x] = Xballoon;
-                               goto loop;
-                       default:
-                               goto loop;
-                       }
-               case 1: /* east */
-                       switch(Cave[y][x+1]) {
-                       case Xacid_1:
-                       case Xacid_2:
-                       case Xacid_3:
-                       case Xacid_4:
-                       case Xacid_5:
-                       case Xacid_6:
-                       case Xacid_7:
-                       case Xacid_8:
-                               Cave[y][x] = Yballoon_eB;
-                               if(Cave[y-1][x+2] == Xblank) Cave[y-1][x+2] = Yacid_splash_eB;
-                               if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_wB;
-                               Next[y][x] = Xblank;
-                               PLAY(SAMPLE_acid);
-                               goto loop;
-                       case Xblank:
-                       case Yacid_splash_eB:
-                       case Yacid_splash_wB:
-                               Cave[y][x] = Yballoon_eB;
-                               Cave[y][x+1] = Yballoon_e;
-                               Next[y][x] = Xblank;
-                               Next[y][x+1] = Xballoon;
-                               goto loop;
-                       default:
-                               goto loop;
-                       }
-               case 2: /* south */
-                       switch(Cave[y+1][x]) {
-                       case Xacid_1:
-                       case Xacid_2:
-                       case Xacid_3:
-                       case Xacid_4:
-                       case Xacid_5:
-                       case Xacid_6:
-                       case Xacid_7:
-                       case Xacid_8:
-                               Cave[y][x] = Yballoon_sB;
-                               if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                               if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                               Next[y][x] = Xblank;
-                               PLAY(SAMPLE_acid);
-                               goto loop;
-                       case Xblank:
-                       case Yacid_splash_eB:
-                       case Yacid_splash_wB:
-                               Cave[y][x] = Yballoon_sB;
-                               Cave[y+1][x] = Yballoon_s;
-                               Next[y][x] = Xblank;
-                               Next[y+1][x] = Xballoon;
-                               goto loop;
-                       default:
-                               goto loop;
-                       }
-               case 3: /* west */
-                       switch(Cave[y][x-1]) {
-                       case Xacid_1:
-                       case Xacid_2:
-                       case Xacid_3:
-                       case Xacid_4:
-                       case Xacid_5:
-                       case Xacid_6:
-                       case Xacid_7:
-                       case Xacid_8:
-                               Cave[y][x] = Yballoon_wB;
-                               if(Cave[y-1][x] == Xblank) Cave[y-1][x] = Yacid_splash_eB;
-                               if(Cave[y-1][x-2] == Xblank) Cave[y-1][x-2] = Yacid_splash_wB;
-                               Next[y][x] = Xblank;
-                               PLAY(SAMPLE_acid);
-                               goto loop;
-                       case Xblank:
-                       case Yacid_splash_eB:
-                       case Yacid_splash_wB:
-                               Cave[y][x] = Yballoon_wB;
-                               Cave[y][x-1] = Yballoon_w;
-                               Next[y][x] = Xblank;
-                               Next[y][x-1] = Xballoon;
-                               goto loop;
-                       default:
-                               goto loop;
-                       }
-               }
-/* ---------------------------------------------------------------------- */
-       case Xacid_1:
-               Next[y][x] = Xacid_2;
-               goto loop;
-       case Xacid_2:
-               Next[y][x] = Xacid_3;
-               goto loop;
-       case Xacid_3:
-               Next[y][x] = Xacid_4;
-               goto loop;
-       case Xacid_4:
-               Next[y][x] = Xacid_5;
-               goto loop;
-       case Xacid_5:
-               Next[y][x] = Xacid_6;
-               goto loop;
-       case Xacid_6:
-               Next[y][x] = Xacid_7;
-               goto loop;
-       case Xacid_7:
-               Next[y][x] = Xacid_8;
-               goto loop;
-       case Xacid_8:
-               Next[y][x] = Xacid_1;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xball_1:
-               if(lev.ball_state == 0) goto loop;
-               Cave[y][x] = Xball_1B;
-               Next[y][x] = Xball_2;
-               if(lev.ball_cnt) goto loop;
-               goto ball_common;
-       case Xball_2:
-               if(lev.ball_state == 0) goto loop;
-               Cave[y][x] = Xball_2B;
-               Next[y][x] = Xball_1;
-               if(lev.ball_cnt) goto loop;
-               goto ball_common;
-       ball_common:
-               play[SAMPLE_ball] = 1;
-               if(lev.ball_random) {
-                       switch(RANDOM & 7) {
-                       case 0:
-                               if(lev.ball_array[lev.ball_pos][0] != Xblank && tab_blank[Cave[y-1][x-1]]) {
-                                       Cave[y-1][x-1] = Yball_eat;
-                                       Next[y-1][x-1] = lev.ball_array[lev.ball_pos][0];
-                               }
-                               break;
-                       case 1:
-                               if(lev.ball_array[lev.ball_pos][1] != Xblank && tab_blank[Cave[y-1][x]]) {
-                                       Cave[y-1][x] = Yball_eat;
-                                       Next[y-1][x] = lev.ball_array[lev.ball_pos][1];
-                               }
-                               break;
-                       case 2:
-                               if(lev.ball_array[lev.ball_pos][2] != Xblank && tab_blank[Cave[y-1][x+1]]) {
-                                       Cave[y-1][x+1] = Yball_eat;
-                                       Next[y-1][x+1] = lev.ball_array[lev.ball_pos][2];
-                               }
-                               break;
-                       case 3:
-                               if(lev.ball_array[lev.ball_pos][3] != Xblank && tab_blank[Cave[y][x-1]]) {
-                                       Cave[y][x-1] = Yball_eat;
-                                       Next[y][x-1] = lev.ball_array[lev.ball_pos][3];
-                               }
-                               break;
-                       case 4:
-                               if(lev.ball_array[lev.ball_pos][4] != Xblank && tab_blank[Cave[y][x+1]]) {
-                                       Cave[y][x+1] = Yball_eat;
-                                       Next[y][x+1] = lev.ball_array[lev.ball_pos][4];
-                               }
-                               break;
-                       case 5:
-                               if(lev.ball_array[lev.ball_pos][5] != Xblank && tab_blank[Cave[y+1][x-1]]) {
-                                       Cave[y+1][x-1] = Yball_eat;
-                                       Next[y+1][x-1] = lev.ball_array[lev.ball_pos][5];
-                               }
-                               break;
-                       case 6:
-                               if(lev.ball_array[lev.ball_pos][6] != Xblank && tab_blank[Cave[y+1][x]]) {
-                                       Cave[y+1][x] = Yball_eat;
-                                       Next[y+1][x] = lev.ball_array[lev.ball_pos][6];
-                               }
-                               break;
-                       case 7:
-                               if(lev.ball_array[lev.ball_pos][7] != Xblank && tab_blank[Cave[y+1][x+1]]) {
-                                       Cave[y+1][x+1] = Yball_eat;
-                                       Next[y+1][x+1] = lev.ball_array[lev.ball_pos][7];
-                               }
-                               break;
-                       }
-               } else {
-                       if(lev.ball_array[lev.ball_pos][0] != Xblank && tab_blank[Cave[y-1][x-1]]) {
-                               Cave[y-1][x-1] = Yball_eat;
-                               Next[y-1][x-1] = lev.ball_array[lev.ball_pos][0];
-                       }
-                       if(lev.ball_array[lev.ball_pos][1] != Xblank && tab_blank[Cave[y-1][x]]) {
-                               Cave[y-1][x] = Yball_eat;
-                               Next[y-1][x] = lev.ball_array[lev.ball_pos][1];
-                       }
-                       if(lev.ball_array[lev.ball_pos][2] != Xblank && tab_blank[Cave[y-1][x+1]]) {
-                               Cave[y-1][x+1] = Yball_eat;
-                               Next[y-1][x+1] = lev.ball_array[lev.ball_pos][2];
-                       }
-                       if(lev.ball_array[lev.ball_pos][3] != Xblank && tab_blank[Cave[y][x-1]]) {
-                               Cave[y][x-1] = Yball_eat;
-                               Next[y][x-1] = lev.ball_array[lev.ball_pos][3];
-                       }
-                       if(lev.ball_array[lev.ball_pos][4] != Xblank && tab_blank[Cave[y][x+1]]) {
-                               Cave[y][x+1] = Yball_eat;
-                               Next[y][x+1] = lev.ball_array[lev.ball_pos][4];
-                       }
-                       if(lev.ball_array[lev.ball_pos][5] != Xblank && tab_blank[Cave[y+1][x-1]]) {
-                               Cave[y+1][x-1] = Yball_eat;
-                               Next[y+1][x-1] = lev.ball_array[lev.ball_pos][5];
-                       }
-                       if(lev.ball_array[lev.ball_pos][6] != Xblank && tab_blank[Cave[y+1][x]]) {
-                               Cave[y+1][x] = Yball_eat;
-                               Next[y+1][x] = lev.ball_array[lev.ball_pos][6];
-                       }
-                       if(lev.ball_array[lev.ball_pos][7] != Xblank && tab_blank[Cave[y+1][x+1]]) {
-                               Cave[y+1][x+1] = Yball_eat;
-                               Next[y+1][x+1] = lev.ball_array[lev.ball_pos][7];
-                       }
-               }
-               lev.ball_pos = (lev.ball_pos + 1) & 7;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xgrow_ns:
-               if(tab_blank[Cave[y-1][x]]) {
-                       Cave[y-1][x] = Ygrow_ns_eat;
-                       Next[y-1][x] = Xgrow_ns;
-                       play[SAMPLE_grow] = 1;
-               }
-               if(tab_blank[Cave[y+1][x]]) {
-                       Cave[y+1][x] = Ygrow_ns_eat;
-                       Next[y+1][x] = Xgrow_ns;
-                       play[SAMPLE_grow] = 1;
-               }
-               goto loop;
-       case Xgrow_ew:
-               if(tab_blank[Cave[y][x+1]]) {
-                       Cave[y][x+1] = Ygrow_ew_eat;
-                       Next[y][x+1] = Xgrow_ew;
-                       play[SAMPLE_grow] = 1;
-               }
-               if(tab_blank[Cave[y][x-1]]) {
-                       Cave[y][x-1] = Ygrow_ew_eat;
-                       Next[y][x-1] = Xgrow_ew;
-                       play[SAMPLE_grow] = 1;
-               }
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xwonderwall:
-               if(lev.wonderwall_time && lev.wonderwall_state) {
-                       Cave[y][x] = XwonderwallB;
-                       play[SAMPLE_wonder] = 1;
-               }
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xexit:
-               if(lev.required > 0) goto loop;
-               temp = RANDOM & 63;
-               if(temp < 21) {
-                       Cave[y][x] = Xexit_1;
-                       Next[y][x] = Xexit_2;
-               } else if(temp < 42) {
-                       Cave[y][x] = Xexit_2;
-                       Next[y][x] = Xexit_3;
-               } else {
-                       Cave[y][x] = Xexit_3;
-                       Next[y][x] = Xexit_1;
-               }
-               goto loop;
-       case Xexit_1:
-               Next[y][x] = Xexit_2;
-               goto loop;
-       case Xexit_2:
-               Next[y][x] = Xexit_3;
-               goto loop;
-       case Xexit_3:
-               Next[y][x] = Xexit_1;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xdynamite_1:
-               play[SAMPLE_tick] = 1;
-               Next[y][x] = Xdynamite_2;
-               goto loop;
-       case Xdynamite_2:
-               play[SAMPLE_tick] = 1;
-               Next[y][x] = Xdynamite_3;
-               goto loop;
-       case Xdynamite_3:
-               play[SAMPLE_tick] = 1;
-               Next[y][x] = Xdynamite_4;
-               goto loop;
-       case Xdynamite_4:
-               play[SAMPLE_tick] = 1;
-               Next[y][x] = Zdynamite;
-               Boom[y-1][x-1] = Xblank;
-               Boom[y-1][x] = Xblank;
-               Boom[y-1][x+1] = Xblank;
-               Boom[y][x-1] = Xblank;
-               Boom[y][x] = Xblank;
-               Boom[y][x+1] = Xblank;
-               Boom[y+1][x-1] = Xblank;
-               Boom[y+1][x] = Xblank;
-               Boom[y+1][x+1] = Xblank;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xwheel:
-               if(lev.wheel_cnt && x == lev.wheel_x && y == lev.wheel_y) Cave[y][x] = XwheelB;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xswitch:
-               if(lev.ball_state) Cave[y][x] = XswitchB;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xsand_stone:
-               switch(Cave[y+1][x]) {
-               case Xacid_1:
-               case Xacid_2:
-               case Xacid_3:
-               case Xacid_4:
-               case Xacid_5:
-               case Xacid_6:
-               case Xacid_7:
-               case Xacid_8:
-                       Cave[y][x] = Xsand_stonesand_3;
-                       if(Cave[y][x+1] == Xblank) Cave[y][x+1] = Yacid_splash_eB;
-                       if(Cave[y][x-1] == Xblank) Cave[y][x-1] = Yacid_splash_wB;
-                       Next[y][x] = Xsand_stonesand_4;
-                       PLAY(SAMPLE_acid);
-                       goto loop;
-               case Xblank:
-               case Yacid_splash_eB:
-               case Yacid_splash_wB:
-                       Cave[y][x] = Xsand_stonesand_3;
-                       Cave[y+1][x] = Xsand_stoneout_1;
-                       Next[y][x] = Xsand_stonesand_4;
-                       Next[y+1][x] = Xsand_stoneout_2;
-                       goto loop;
-               case Xsand:
-                       Cave[y][x] = Xsand_stonesand_1;
-                       Cave[y+1][x] = Xsand_sandstone_1;
-                       Next[y][x] = Xsand_stonesand_2;
-                       Next[y+1][x] = Xsand_sandstone_2;
-                       goto loop;
-               default:
-                       goto loop;
-               }
-       case Xsand_stonein_1:
-               Next[y][x] = Xsand_stonein_2;
-               goto loop;
-       case Xsand_stonein_2:
-               Next[y][x] = Xsand_stonein_3;
-               goto loop;
-       case Xsand_stonein_3:
-               Next[y][x] = Xsand_stonein_4;
-               goto loop;
-       case Xsand_stonein_4:
-               Next[y][x] = Xblank;
-               goto loop;
-       case Xsand_stonesand_1:
-               Next[y][x] = Xsand_stonesand_2;
-               goto loop;
-       case Xsand_stonesand_2:
-               Next[y][x] = Xsand_stonesand_3;
-               goto loop;
-       case Xsand_stonesand_3:
-               Next[y][x] = Xsand_stonesand_4;
-               goto loop;
-       case Xsand_stonesand_4:
-               Next[y][x] = Xsand;
-               goto loop;
-       case Xsand_stoneout_1:
-               Next[y][x] = Xsand_stoneout_2;
-               goto loop;
-       case Xsand_stoneout_2:
-               Next[y][x] = Xstone_fall;
-               goto loop;
-       case Xsand_sandstone_1:
-               Next[y][x] = Xsand_sandstone_2;
-               goto loop;
-       case Xsand_sandstone_2:
-               Next[y][x] = Xsand_sandstone_3;
-               goto loop;
-       case Xsand_sandstone_3:
-               Next[y][x] = Xsand_sandstone_4;
-               goto loop;
-       case Xsand_sandstone_4:
-               Next[y][x] = Xsand_stone;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xdripper:
-               if(lev.lenses_cnt) Cave[y][x] = XdripperB;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xfake_blank:
-               if(lev.lenses_cnt) Cave[y][x] = Xfake_blankB;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xfake_grass:
-               if(lev.magnify_cnt) Cave[y][x] = Xfake_grassB;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xfake_door_1:
-               if(lev.magnify_cnt) Cave[y][x] = Xdoor_1;
-               goto loop;
-       case Xfake_door_2:
-               if(lev.magnify_cnt) Cave[y][x] = Xdoor_2;
-               goto loop;
-       case Xfake_door_3:
-               if(lev.magnify_cnt) Cave[y][x] = Xdoor_3;
-               goto loop;
-       case Xfake_door_4:
-               if(lev.magnify_cnt) Cave[y][x] = Xdoor_4;
-               goto loop;
-       case Xfake_door_5:
-               if(lev.magnify_cnt) Cave[y][x] = Xdoor_5;
-               goto loop;
-       case Xfake_door_6:
-               if(lev.magnify_cnt) Cave[y][x] = Xdoor_6;
-               goto loop;
-       case Xfake_door_7:
-               if(lev.magnify_cnt) Cave[y][x] = Xdoor_7;
-               goto loop;
-       case Xfake_door_8:
-               if(lev.magnify_cnt) Cave[y][x] = Xdoor_8;
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case Xboom_bug:
-       bug_boom:
-               Next[y][x] = Znormal;
-               Boom[y-1][x-1] = Xemerald;
-               Boom[y-1][x] = Xemerald;
-               Boom[y-1][x+1] = Xemerald;
-               Boom[y][x-1] = Xemerald;
-               Boom[y][x] = Xdiamond;
-               Boom[y][x+1] = Xemerald;
-               Boom[y+1][x-1] = Xemerald;
-               Boom[y+1][x] = Xemerald;
-               Boom[y+1][x+1] = Xemerald;
-               goto loop;
-       case Xboom_bomb:
-       tank_boom:
-               Next[y][x] = Znormal;
-               Boom[y-1][x-1] = Xblank;
-               Boom[y-1][x] = Xblank;
-               Boom[y-1][x+1] = Xblank;
-               Boom[y][x-1] = Xblank;
-               Boom[y][x] = Xblank;
-               Boom[y][x+1] = Xblank;
-               Boom[y+1][x-1] = Xblank;
-               Boom[y+1][x] = Xblank;
-               Boom[y+1][x+1] = Xblank;
-               goto loop;
-       case Xboom_android:
-       case Xboom_1:
-               Next[y][x] = Xboom_2;
-               play[SAMPLE_boom] = 1;
-               goto loop;
-       case Xboom_2:
-               Next[y][x] = Boom[y][x];
-               goto loop;
-/* ---------------------------------------------------------------------- */
-       case ZBORDER:
-               if(++y < HEIGHT - 1) {
-                       x = 0;
-                       cave_cache = Cave[y];
-                       goto loop;
-               }
-               goto done;
-       }
+         lev.eater_pos = (lev.eater_pos + 1) & 7;
+         score += lev.eater_score;
+         goto loop;
 
-#undef RANDOM
-#undef PLAY
-#undef PLAY_FORCE
+       case Xalien:
+       case Xalien_pause:
+         Cave[y][x] = Ystone_sB;
+         Cave[y+1][x] = Yalien_stone;
+         Next[y+1][x] = Znormal;
+         Boom[y][x-1] = Xblank;
+         Boom[y][x] = Xblank;
+         Boom[y][x+1] = Xblank;
+         Boom[y+1][x-1] = Xblank;
+         Boom[y+1][x] = Xblank;
+         Boom[y+1][x+1] = Xblank;
+         Boom[y+2][x-1] = Xblank;
+         Boom[y+2][x] = Xblank;
+         Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
+#endif
+         score += lev.alien_score;
+         goto loop;
+
+       case Xdiamond:
+       case Xdiamond_pause:
+         switch (Cave[y+2][x])
+         {
+           case Xblank:
+           case Yacid_splash_eB:
+           case Yacid_splash_wB:
+           case Zplayer:
+           case Xbug_n:
+           case Xbug_e:
+           case Xbug_s:
+           case Xbug_w:
+           case Xbug_gon:
+           case Xbug_goe:
+           case Xbug_gos:
+           case Xbug_gow:
+           case Xtank_n:
+           case Xtank_e:
+           case Xtank_s:
+           case Xtank_w:
+           case Xtank_gon:
+           case Xtank_goe:
+           case Xtank_gos:
+           case Xtank_gow:
+           case Xspring_fall:
+           case Xandroid:
+           case Xandroid_1_n:
+           case Xandroid_2_n:
+           case Xandroid_1_e:
+           case Xandroid_2_e:
+           case Xandroid_1_s:
+           case Xandroid_2_s:
+           case Xandroid_1_w:
+           case Xandroid_2_w:
+           case Xstone_fall:
+           case Xemerald_fall:
+           case Xdiamond_fall:
+           case Xbomb_fall:
+           case Xacid_s:
+           case Xacid_1:
+           case Xacid_2:
+           case Xacid_3:
+           case Xacid_4:
+           case Xacid_5:
+           case Xacid_6:
+           case Xacid_7:
+           case Xacid_8:
+           case Xnut_fall:
+           case Xplant:
+           case Yplant:
+             Next[y][x] = Xstone;
+             play_element_sound(x, y, SAMPLE_stone, Xstone);
+             goto loop;
+         }
+
+         Cave[y][x] = Ystone_sB;
+         Cave[y+1][x] = Ydiamond_stone;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xstone_pause;
+         play_element_sound(x, y, SAMPLE_squash, Xdiamond);
+         goto loop;
+
+       case Xbomb:
+       case Xbomb_pause:
+         Cave[y+1][x] = Ybomb_eat;
+         Next[y+1][x] = Znormal;
+         Boom[y][x-1] = Xblank;
+         Boom[y][x] = Xblank;
+         Boom[y][x+1] = Xblank;
+         Boom[y+1][x-1] = Xblank;
+         Boom[y+1][x] = Xblank;
+         Boom[y+1][x+1] = Xblank;
+         Boom[y+2][x-1] = Xblank;
+         Boom[y+2][x] = Xblank;
+         Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
+#endif
+         goto loop;
+
+       case Xwonderwall:
+         if (lev.wonderwall_time)
+         {
+           lev.wonderwall_state = 1;
+           Cave[y][x] = Ystone_sB;
+
+           if (tab_blank[Cave[y+2][x]])
+           {
+             Cave[y+2][x] = Yemerald_s;
+             Next[y+2][x] = Xemerald_fall;
+           }
+
+           Next[y][x] = Xblank;
+           play_element_sound(x, y, SAMPLE_wonderfall, Xwonderwall);
+           goto loop;
+         }
+
+       default:
+         Cave[y][x] = Xstone;
+         Next[y][x] = Xstone;
+         play_element_sound(x, y, SAMPLE_stone, Xstone);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xnut:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ynut_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Ynut_sB;
+         Cave[y+1][x] = Ynut_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xnut_fall;
+         goto loop;
+
+       case Xspring:
+       case Xspring_pause:
+       case Xspring_e:
+       case Xspring_w:
+       case Xandroid:
+       case Xandroid_1_n:
+       case Xandroid_2_n:
+       case Xandroid_1_e:
+       case Xandroid_2_e:
+       case Xandroid_1_s:
+       case Xandroid_2_s:
+       case Xandroid_1_w:
+       case Xandroid_2_w:
+       case Xstone:
+       case Xstone_pause:
+       case Xemerald:
+       case Xemerald_pause:
+       case Xdiamond:
+       case Xdiamond_pause:
+       case Xbomb:
+       case Xbomb_pause:
+       case Xballoon:
+       case Xacid_ne:
+       case Xacid_nw:
+       case Xball_1:
+       case Xball_2:
+       case Xnut:
+       case Xnut_pause:
+       case Xgrow_ns:
+       case Xgrow_ew:
+       case Xkey_1:
+       case Xkey_2:
+       case Xkey_3:
+       case Xkey_4:
+       case Xkey_5:
+       case Xkey_6:
+       case Xkey_7:
+       case Xkey_8:
+       case Xbumper:
+       case Xswitch:
+       case Xround_wall_1:
+       case Xround_wall_2:
+       case Xround_wall_3:
+       case Xround_wall_4:
+         if (RANDOM & 1)
+         {
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Ynut_eB;
+             Cave[y][x+1] = Ynut_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xnut_pause;
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Ynut_wB;
+             Cave[y][x-1] = Ynut_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xnut_pause;
+             goto loop;
+           }
+         }
+         else
+         {
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Ynut_wB;
+             Cave[y][x-1] = Ynut_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xnut_pause;
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Ynut_eB;
+             Cave[y][x+1] = Ynut_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xnut_pause;
+             goto loop;
+           }
+         }
+
+        default:
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+
+    case Xnut_pause:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ynut_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Ynut_sB;
+         Cave[y+1][x] = Ynut_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xnut_fall;
+         goto loop;
+
+       default:
+         Cave[y][x] = Xnut;
+         Next[y][x] = Xnut;
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xnut_fall:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ynut_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Zplayer:
+         Cave[y][x] = Ynut_sB;
+         Cave[y+1][x] = Ynut_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xnut_fall;
+         goto loop;
+
+       default:
+         Cave[y][x] = Xnut;
+         Next[y][x] = Xnut;
+         play_element_sound(x, y, SAMPLE_nut, Xnut);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xbug_n:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto bug_boom;
+
+      switch (Cave[y][x+1])
+      {
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+       case Zplayer:
+         Cave[y][x] = Ybug_n_e;
+         Next[y][x] = Xbug_goe;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+
+       default:
+         goto bug_gon;
+       }
+
+    case Xbug_gon:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto bug_boom;
+
+    bug_gon:
+
+      switch (Cave[y-1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ybug_nB;
+         if (Cave[y-2][x+1] == Xblank)
+           Cave[y-2][x+1] = Yacid_splash_eB;
+         if (Cave[y-2][x-1] == Xblank)
+           Cave[y-2][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Ybug_nB;
+         Cave[y-1][x] = Ybug_n;
+         Next[y][x] = Xblank;
+         Next[y-1][x] = Xbug_n;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+
+       default:
+         Cave[y][x] = Ybug_n_w;
+         Next[y][x] = Xbug_gow;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xbug_e:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto bug_boom;
+
+      switch (Cave[y+1][x])
+      {
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+       case Zplayer:
+         Cave[y][x] = Ybug_e_s;
+         Next[y][x] = Xbug_gos;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+
+       default:
+         goto bug_goe;
+      }
+
+    case Xbug_goe:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto bug_boom;
+
+    bug_goe:
+
+      switch (Cave[y][x+1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ybug_eB;
+         if (Cave[y-1][x+2] == Xblank)
+           Cave[y-1][x+2] = Yacid_splash_eB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Ybug_eB;
+         Cave[y][x+1] = Ybug_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xbug_e;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+
+       default:
+         Cave[y][x] = Ybug_e_n;
+         Next[y][x] = Xbug_gon;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xbug_s:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto bug_boom;
+
+      switch (Cave[y][x-1])
+      {
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+       case Zplayer:
+         Cave[y][x] = Ybug_s_w;
+         Next[y][x] = Xbug_gow;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+
+       default:
+         goto bug_gos;
+      }
+
+    case Xbug_gos:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto bug_boom;
+
+    bug_gos:
+
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ybug_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Ybug_sB;
+         Cave[y+1][x] = Ybug_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xbug_s;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+
+       default:
+         Cave[y][x] = Ybug_s_e;
+         Next[y][x] = Xbug_goe;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+      }
 
-done:
-       if(ply1.alive || ply2.alive) lev.score += score; /* only get a score if someone is alive */
-       Random = random;
+    /* --------------------------------------------------------------------- */
+
+    case Xbug_w:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto bug_boom;
+
+      switch (Cave[y-1][x])
+      {
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+       case Zplayer:
+         Cave[y][x] = Ybug_w_n;
+         Next[y][x] = Xbug_gon;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+
+       default:
+         goto bug_gow;
+      }
+
+    case Xbug_gow:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto bug_boom;
+
+    bug_gow:
+
+      switch (Cave[y][x-1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ybug_wB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_eB;
+         if (Cave[y-1][x-2] == Xblank)
+           Cave[y-1][x-2] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Ybug_wB;
+         Cave[y][x-1] = Ybug_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xbug_w;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+
+       default:
+         Cave[y][x] = Ybug_w_s;
+         Next[y][x] = Xbug_gos;
+         play_element_sound(x, y, SAMPLE_bug, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xtank_n:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto tank_boom;
+
+      switch (Cave[y][x-1])
+      {
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+       case Zplayer:
+         Cave[y][x] = Ytank_n_w;
+         Next[y][x] = Xtank_gow;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+
+       default:
+         goto tank_gon;
+      }
+
+    case Xtank_gon:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto tank_boom;
+
+    tank_gon:
+
+      switch (Cave[y-1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ytank_nB;
+         if (Cave[y-2][x+1] == Xblank)
+           Cave[y-2][x+1] = Yacid_splash_eB;
+         if (Cave[y-2][x-1] == Xblank)
+           Cave[y-2][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Ytank_nB;
+         Cave[y-1][x] = Ytank_n;
+         Next[y][x] = Xblank;
+         Next[y-1][x] = Xtank_n;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+
+       default:
+         Cave[y][x] = Ytank_n_e;
+         Next[y][x] = Xtank_goe;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xtank_e:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto tank_boom;
+
+      switch (Cave[y-1][x])
+      {
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+       case Zplayer:
+         Cave[y][x] = Ytank_e_n;
+         Next[y][x] = Xtank_gon;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+
+       default:
+         goto tank_goe;
+      }
+
+    case Xtank_goe:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto tank_boom;
+
+    tank_goe:
+
+      switch (Cave[y][x+1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ytank_eB;
+         if (Cave[y-1][x+2] == Xblank)
+           Cave[y-1][x+2] = Yacid_splash_eB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Ytank_eB;
+         Cave[y][x+1] = Ytank_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xtank_e;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+
+       default:
+         Cave[y][x] = Ytank_e_s;
+         Next[y][x] = Xtank_gos;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xtank_s:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto tank_boom;
+
+      switch (Cave[y][x+1])
+      {
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+       case Zplayer:
+         Cave[y][x] = Ytank_s_e;
+         Next[y][x] = Xtank_goe;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+
+       default:
+         goto tank_gos;
+      }
+
+    case Xtank_gos:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto tank_boom;
+
+    tank_gos:
+
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ytank_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Ytank_sB;
+         Cave[y+1][x] = Ytank_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xtank_s;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+
+       default:
+         Cave[y][x] = Ytank_s_w;
+         Next[y][x] = Xtank_gow;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xtank_w:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto tank_boom;
+
+      switch (Cave[y+1][x])
+      {
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+       case Zplayer:
+         Cave[y][x] = Ytank_w_s;
+         Next[y][x] = Xtank_gos;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+
+       default:
+         goto tank_gow;
+      }
+
+    case Xtank_gow:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
+       goto tank_boom;
+
+    tank_gow:
+
+      switch (Cave[y][x-1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ytank_wB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_eB;
+         if (Cave[y-1][x-2] == Xblank)
+           Cave[y-1][x-2] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Ytank_wB;
+         Cave[y][x-1] = Ytank_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xtank_w;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+
+       default:
+         Cave[y][x] = Ytank_w_n;
+         Next[y][x] = Xtank_gon;
+         play_element_sound(x, y, SAMPLE_tank, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xandroid:
+
+    android:
+
+      if (lev.android_clone_cnt == 0)
+      {
+       if (Cave[y-1][x-1] != Xblank &&
+           Cave[y-1][x]   != Xblank &&
+           Cave[y-1][x+1] != Xblank &&
+           Cave[y][x-1]   != Xblank &&
+           Cave[y][x+1]   != Xblank &&
+           Cave[y+1][x-1] != Xblank &&
+           Cave[y+1][x]   != Xblank &&
+           Cave[y+1][x+1] != Xblank)
+         goto android_move;
+
+       switch (RANDOM & 7)
+       {
+         /* randomly find an object to clone */
+
+         case 0: /* S,NE,W,NW,SE,E,SW,N */
+           temp= lev.android_array[Cave[y+1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x-1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x+1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x]];   if (temp != Xblank) break;
+           goto android_move;
+
+         case 1: /* NW,SE,N,S,NE,SW,E,W */
+           temp= lev.android_array[Cave[y-1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x+1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x-1]];   if (temp != Xblank) break;
+           goto android_move;
+
+         case 2: /* SW,E,S,W,N,NW,SE,NE */
+           temp= lev.android_array[Cave[y+1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x+1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x-1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x+1]]; if (temp != Xblank) break;
+           goto android_move;
+
+         case 3: /* N,SE,NE,E,W,S,NW,SW */
+           temp= lev.android_array[Cave[y-1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x+1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x-1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x-1]]; if (temp != Xblank) break;
+           goto android_move;
+
+         case 4: /* SE,NW,E,NE,SW,W,N,S */
+           temp= lev.android_array[Cave[y+1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x+1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x-1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x]];   if (temp != Xblank) break;
+           goto android_move;
+
+         case 5: /* NE,W,SE,SW,S,N,E,NW */
+           temp= lev.android_array[Cave[y-1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x-1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x+1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x-1]]; if (temp != Xblank) break;
+           goto android_move;
+
+         case 6: /* E,N,SW,S,NW,NE,SE,W */
+           temp= lev.android_array[Cave[y][x+1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x-1]];   if (temp != Xblank) break;
+           goto android_move;
+
+         case 7: /* W,SW,NW,N,E,SE,NE,S */
+           temp= lev.android_array[Cave[y][x-1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x-1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y][x+1]];   if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y-1][x+1]]; if (temp != Xblank) break;
+           temp= lev.android_array[Cave[y+1][x]];   if (temp != Xblank) break;
+           goto android_move;
+       }
+
+       Next[y][x] = temp;      /* the item we chose to clone */
+       play_element_sound(x, y, SAMPLE_android_clone, temp);
+
+       switch (RANDOM & 7)
+       {
+         /* randomly find a direction to move */
+
+         case 0: /* S,NE,W,NW,SE,E,SW,N */
+           if (Cave[y+1][x] == Xblank)   goto android_s;
+           if (Cave[y-1][x+1] == Xblank) goto android_ne;
+           if (Cave[y][x-1] == Xblank)   goto android_w;
+           if (Cave[y-1][x-1] == Xblank) goto android_nw;
+           if (Cave[y+1][x+1] == Xblank) goto android_se;
+           if (Cave[y][x+1] == Xblank)   goto android_e;
+           if (Cave[y+1][x-1] == Xblank) goto android_sw;
+           if (Cave[y-1][x] == Xblank)   goto android_n;
+           goto android_move;
+
+         case 1: /* NW,SE,N,S,NE,SW,E,W */
+           if (Cave[y-1][x-1] == Xblank) goto android_nw;
+           if (Cave[y+1][x+1] == Xblank) goto android_se;
+           if (Cave[y-1][x] == Xblank)   goto android_n;
+           if (Cave[y+1][x] == Xblank)   goto android_s;
+           if (Cave[y-1][x+1] == Xblank) goto android_ne;
+           if (Cave[y+1][x-1] == Xblank) goto android_sw;
+           if (Cave[y][x+1] == Xblank)   goto android_e;
+           if (Cave[y][x-1] == Xblank)   goto android_w;
+           goto android_move;
+
+         case 2: /* SW,E,S,W,N,NW,SE,NE */
+           if (Cave[y+1][x-1] == Xblank) goto android_sw;
+           if (Cave[y][x+1] == Xblank)   goto android_e;
+           if (Cave[y+1][x] == Xblank)   goto android_s;
+           if (Cave[y][x-1] == Xblank)   goto android_w;
+           if (Cave[y-1][x] == Xblank)   goto android_n;
+           if (Cave[y-1][x-1] == Xblank) goto android_nw;
+           if (Cave[y+1][x+1] == Xblank) goto android_se;
+           if (Cave[y-1][x+1] == Xblank) goto android_ne;
+           goto android_move;
+
+         case 3: /* N,SE,NE,E,W,S,NW,SW */
+           if (Cave[y-1][x] == Xblank)   goto android_n;
+           if (Cave[y+1][x+1] == Xblank) goto android_se;
+           if (Cave[y-1][x+1] == Xblank) goto android_ne;
+           if (Cave[y][x+1] == Xblank)   goto android_e;
+           if (Cave[y][x-1] == Xblank)   goto android_w;
+           if (Cave[y+1][x] == Xblank)   goto android_s;
+           if (Cave[y-1][x-1] == Xblank) goto android_nw;
+           if (Cave[y+1][x-1] == Xblank) goto android_sw;
+           goto android_move;
+
+         case 4: /* SE,NW,E,NE,SW,W,N,S */
+           if (Cave[y+1][x+1] == Xblank) goto android_se;
+           if (Cave[y-1][x-1] == Xblank) goto android_nw;
+           if (Cave[y][x+1] == Xblank)   goto android_e;
+           if (Cave[y-1][x+1] == Xblank) goto android_ne;
+           if (Cave[y+1][x-1] == Xblank) goto android_sw;
+           if (Cave[y][x-1] == Xblank)   goto android_w;
+           if (Cave[y-1][x] == Xblank)   goto android_n;
+           if (Cave[y+1][x] == Xblank)   goto android_s;
+           goto android_move;
+
+         case 5: /* NE,W,SE,SW,S,N,E,NW */
+           if (Cave[y-1][x+1] == Xblank) goto android_ne;
+           if (Cave[y][x-1] == Xblank)   goto android_w;
+           if (Cave[y+1][x+1] == Xblank) goto android_se;
+           if (Cave[y+1][x-1] == Xblank) goto android_sw;
+           if (Cave[y+1][x] == Xblank)   goto android_s;
+           if (Cave[y-1][x] == Xblank)   goto android_n;
+           if (Cave[y][x+1] == Xblank)   goto android_e;
+           if (Cave[y-1][x-1] == Xblank) goto android_nw;
+           goto android_move;
+
+         case 6: /* E,N,SW,S,NW,NE,SE,W */
+           if (Cave[y][x+1] == Xblank)   goto android_e;
+           if (Cave[y-1][x] == Xblank)   goto android_n;
+           if (Cave[y+1][x-1] == Xblank) goto android_sw;
+           if (Cave[y+1][x] == Xblank)   goto android_s;
+           if (Cave[y-1][x-1] == Xblank) goto android_nw;
+           if (Cave[y-1][x+1] == Xblank) goto android_ne;
+           if (Cave[y+1][x+1] == Xblank) goto android_se;
+           if (Cave[y][x-1] == Xblank)   goto android_w;
+           goto android_move;
+
+         case 7: /* W,SW,NW,N,E,SE,NE,S */
+           if (Cave[y][x-1] == Xblank)   goto android_w;
+           if (Cave[y+1][x-1] == Xblank) goto android_sw;
+           if (Cave[y-1][x-1] == Xblank) goto android_nw;
+           if (Cave[y-1][x] == Xblank)   goto android_n;
+           if (Cave[y][x+1] == Xblank)   goto android_e;
+           if (Cave[y+1][x+1] == Xblank) goto android_se;
+           if (Cave[y-1][x+1] == Xblank) goto android_ne;
+           if (Cave[y+1][x] == Xblank)   goto android_s;
+           goto android_move;
+       }
+      }
+
+    android_move:
+      if (lev.android_move_cnt == 0)
+      {
+       if (Cave[y-1][x-1] == Zplayer ||
+           Cave[y-1][x]   == Zplayer ||
+           Cave[y-1][x+1] == Zplayer ||
+           Cave[y][x-1]   == Zplayer ||
+           Cave[y][x+1]   == Zplayer ||
+           Cave[y+1][x-1] == Zplayer ||
+           Cave[y+1][x]   == Zplayer ||
+           Cave[y+1][x+1] == Zplayer)
+         goto android_still;
+
+       set_nearest_player_xy(x, y, &dx, &dy);
+
+       Next[y][x] = Xblank;    /* assume we will move */
+       temp = ((x < dx) + 1 - (x > dx)) + ((y < dy) + 1 - (y > dy)) * 3;
+
+       if (RANDOM & 1)
+       {
+         switch (temp)
+         {
+           /* attempt clockwise move first if direct path is blocked */
+
+           case 0: /* north west */
+             if (tab_android_move[Cave[y-1][x-1]]) goto android_nw;
+             if (tab_android_move[Cave[y-1][x]])   goto android_n;
+             if (tab_android_move[Cave[y][x-1]])   goto android_w;
+             break;
+
+           case 1: /* north */
+             if (tab_android_move[Cave[y-1][x]])   goto android_n;
+             if (tab_android_move[Cave[y-1][x+1]]) goto android_ne;
+             if (tab_android_move[Cave[y-1][x-1]]) goto android_nw;
+             break;
+
+           case 2: /* north east */
+             if (tab_android_move[Cave[y-1][x+1]]) goto android_ne;
+             if (tab_android_move[Cave[y][x+1]])   goto android_e;
+             if (tab_android_move[Cave[y-1][x]])   goto android_n;
+             break;
+
+           case 3: /* west */
+             if (tab_android_move[Cave[y][x-1]])   goto android_w;
+             if (tab_android_move[Cave[y-1][x-1]]) goto android_nw;
+             if (tab_android_move[Cave[y+1][x-1]]) goto android_sw;
+             break;
+
+           case 4: /* nowhere */
+             break;
+
+           case 5: /* east */
+             if (tab_android_move[Cave[y][x+1]])   goto android_e;
+             if (tab_android_move[Cave[y+1][x+1]]) goto android_se;
+             if (tab_android_move[Cave[y-1][x+1]]) goto android_ne;
+             break;
+
+           case 6: /* south west */
+             if (tab_android_move[Cave[y+1][x-1]]) goto android_sw;
+             if (tab_android_move[Cave[y][x-1]])   goto android_w;
+             if (tab_android_move[Cave[y+1][x]])   goto android_s;
+             break;
+
+           case 7: /* south */
+             if (tab_android_move[Cave[y+1][x]])   goto android_s;
+             if (tab_android_move[Cave[y+1][x-1]]) goto android_sw;
+             if (tab_android_move[Cave[y+1][x+1]]) goto android_se;
+             break;
+
+           case 8: /* south east */
+             if (tab_android_move[Cave[y+1][x+1]]) goto android_se;
+             if (tab_android_move[Cave[y+1][x]])   goto android_s;
+             if (tab_android_move[Cave[y][x+1]])   goto android_e;
+             break;
+         }
+       }
+       else
        {
-               void *temp = Cave; Cave = Next; Next = Draw; Draw = temp; /* triple buffering */
+         switch (temp)
+         {
+           /* attempt counterclockwise move first if direct path is blocked */
+
+           case 0: /* north west */
+             if (tab_android_move[Cave[y-1][x-1]]) goto android_nw;
+             if (tab_android_move[Cave[y][x-1]])   goto android_w;
+             if (tab_android_move[Cave[y-1][x]])   goto android_n;
+             break;
+
+           case 1: /* north */
+             if (tab_android_move[Cave[y-1][x]])   goto android_n;
+             if (tab_android_move[Cave[y-1][x-1]]) goto android_nw;
+             if (tab_android_move[Cave[y-1][x+1]]) goto android_ne;
+             break;
+
+           case 2: /* north east */
+             if (tab_android_move[Cave[y-1][x+1]]) goto android_ne;
+             if (tab_android_move[Cave[y-1][x]])   goto android_n;
+             if (tab_android_move[Cave[y][x+1]])   goto android_e;
+             break;
+
+           case 3: /* west */
+             if (tab_android_move[Cave[y][x-1]])   goto android_w;
+             if (tab_android_move[Cave[y+1][x-1]]) goto android_sw;
+             if (tab_android_move[Cave[y-1][x-1]]) goto android_nw;
+             break;
+
+           case 4: /* nowhere */
+             break;
+
+           case 5: /* east */
+             if (tab_android_move[Cave[y][x+1]])   goto android_e;
+             if (tab_android_move[Cave[y-1][x+1]]) goto android_ne;
+             if (tab_android_move[Cave[y+1][x+1]]) goto android_se;
+             break;
+
+           case 6: /* south west */
+             if (tab_android_move[Cave[y+1][x-1]]) goto android_sw;
+             if (tab_android_move[Cave[y+1][x]])   goto android_s;
+             if (tab_android_move[Cave[y][x-1]])   goto android_w;
+             break;
+
+           case 7: /* south */
+             if (tab_android_move[Cave[y+1][x]])   goto android_s;
+             if (tab_android_move[Cave[y+1][x+1]]) goto android_se;
+             if (tab_android_move[Cave[y+1][x-1]]) goto android_sw;
+             break;
+
+           case 8: /* south east */
+             if (tab_android_move[Cave[y+1][x+1]]) goto android_se;
+             if (tab_android_move[Cave[y][x+1]])   goto android_e;
+             if (tab_android_move[Cave[y+1][x]])   goto android_s;
+             break;
+         }
        }
-}
+      }
 
-#endif
+    android_still:
+
+      Next[y][x] = Xandroid;
+      goto loop;
+
+    android_n:
+
+      Cave[y][x] = Yandroid_nB;
+      Cave[y-1][x] = Yandroid_n;
+      Next[y-1][x] = Xandroid;
+      play_element_sound(x, y, SAMPLE_android_move, element);
+      goto loop;
+
+    android_ne:
+
+      Cave[y][x] = Yandroid_neB;
+      Cave[y-1][x+1] = Yandroid_ne;
+      Next[y-1][x+1] = Xandroid;
+      play_element_sound(x, y, SAMPLE_android_move, element);
+      goto loop;
+
+    android_e:
+
+      Cave[y][x] = Yandroid_eB;
+      Cave[y][x+1] = Yandroid_e;
+      Next[y][x+1] = Xandroid;
+      play_element_sound(x, y, SAMPLE_android_move, element);
+      goto loop;
+
+    android_se:
+
+      Cave[y][x] = Yandroid_seB;
+      Cave[y+1][x+1] = Yandroid_se;
+      Next[y+1][x+1] = Xandroid;
+      play_element_sound(x, y, SAMPLE_android_move, element);
+      goto loop;
+
+    android_s:
+
+      Cave[y][x] = Yandroid_sB;
+      Cave[y+1][x] = Yandroid_s;
+      Next[y+1][x] = Xandroid;
+      play_element_sound(x, y, SAMPLE_android_move, element);
+      goto loop;
+
+    android_sw:
+
+      Cave[y][x] = Yandroid_swB;
+      Cave[y+1][x-1] = Yandroid_sw;
+      Next[y+1][x-1] = Xandroid;
+      play_element_sound(x, y, SAMPLE_android_move, element);
+      goto loop;
+
+    android_w:
+
+      Cave[y][x] = Yandroid_wB;
+      Cave[y][x-1] = Yandroid_w;
+      Next[y][x-1] = Xandroid;
+      play_element_sound(x, y, SAMPLE_android_move, element);
+      goto loop;
+
+    android_nw:
+
+      Cave[y][x] = Yandroid_nwB;
+      Cave[y-1][x-1] = Yandroid_nw;
+      Next[y-1][x-1] = Xandroid;
+      play_element_sound(x, y, SAMPLE_android_move, element);
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xandroid_1_n:
+      switch (Cave[y-1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yandroid_nB;
+         if (Cave[y-2][x+1] == Xblank)
+           Cave[y-2][x+1] = Yacid_splash_eB;
+         if (Cave[y-2][x-1] == Xblank)
+           Cave[y-2][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yandroid_nB;
+         Cave[y-1][x] = Yandroid_n;
+         Next[y][x] = Xblank;
+         Next[y-1][x] = Xandroid;
+         play_element_sound(x, y, SAMPLE_android_move, element);
+         goto loop;
+
+       default:
+         goto android;
+      }
+
+    case Xandroid_2_n:
+      switch (Cave[y-1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yandroid_nB;
+         if (Cave[y-2][x+1] == Xblank)
+           Cave[y-2][x+1] = Yacid_splash_eB;
+         if (Cave[y-2][x-1] == Xblank)
+           Cave[y-2][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yandroid_nB;
+         Cave[y-1][x] = Yandroid_n;
+         Next[y][x] = Xblank;
+         Next[y-1][x] = Xandroid_1_n;
+         play_element_sound(x, y, SAMPLE_android_move, element);
+         goto loop;
+
+       default:
+         goto android;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xandroid_1_e:
+      switch (Cave[y][x+1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yandroid_eB;
+         if (Cave[y-1][x+2] == Xblank)
+           Cave[y-1][x+2] = Yacid_splash_eB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yandroid_eB;
+         Cave[y][x+1] = Yandroid_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xandroid;
+         play_element_sound(x, y, SAMPLE_android_move, element);
+         goto loop;
+
+       default:
+         goto android;
+      }
+
+    case Xandroid_2_e:
+      switch (Cave[y][x+1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yandroid_eB;
+         if (Cave[y-1][x+2] == Xblank)
+           Cave[y-1][x+2] = Yacid_splash_eB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yandroid_eB;
+         Cave[y][x+1] = Yandroid_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xandroid_1_e;
+         play_element_sound(x, y, SAMPLE_android_move, element);
+         goto loop;
+
+       default:
+         goto android;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xandroid_1_s:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yandroid_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yandroid_sB;
+         Cave[y+1][x] = Yandroid_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xandroid;
+         play_element_sound(x, y, SAMPLE_android_move, element);
+         goto loop;
+
+       default:
+         goto android;
+      }
+
+    case Xandroid_2_s:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yandroid_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yandroid_sB;
+         Cave[y+1][x] = Yandroid_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xandroid_1_s;
+         play_element_sound(x, y, SAMPLE_android_move, element);
+         goto loop;
+
+       default:
+         goto android;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xandroid_1_w:
+      switch (Cave[y][x-1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yandroid_wB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_eB;
+         if (Cave[y-1][x-2] == Xblank)
+           Cave[y-1][x-2] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yandroid_wB;
+         Cave[y][x-1] = Yandroid_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xandroid;
+         play_element_sound(x, y, SAMPLE_android_move, element);
+         goto loop;
+
+       default:
+         goto android;
+      }
+
+    case Xandroid_2_w:
+      switch (Cave[y][x-1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yandroid_wB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_eB;
+         if (Cave[y-1][x-2] == Xblank)
+           Cave[y-1][x-2] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yandroid_wB;
+         Cave[y][x-1] = Yandroid_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xandroid_1_w;
+         play_element_sound(x, y, SAMPLE_android_move, element);
+         goto loop;
+
+       default:
+         goto android;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xspring:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yspring_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+         Cave[y][x] = Yspring_sB;
+         Cave[y+1][x] = Yspring_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xspring_fall;
+         goto loop;
+
+       case Xspring:
+       case Xspring_pause:
+       case Xspring_e:
+       case Xspring_w:
+       case Xandroid:
+       case Xandroid_1_n:
+       case Xandroid_2_n:
+       case Xandroid_1_e:
+       case Xandroid_2_e:
+       case Xandroid_1_s:
+       case Xandroid_2_s:
+       case Xandroid_1_w:
+       case Xandroid_2_w:
+       case Xstone:
+       case Xstone_pause:
+       case Xemerald:
+       case Xemerald_pause:
+       case Xdiamond:
+       case Xdiamond_pause:
+       case Xbomb:
+       case Xbomb_pause:
+       case Xballoon:
+       case Xacid_ne:
+       case Xacid_nw:
+       case Xball_1:
+       case Xball_2:
+       case Xnut:
+       case Xnut_pause:
+       case Xgrow_ns:
+       case Xgrow_ew:
+       case Xkey_1:
+       case Xkey_2:
+       case Xkey_3:
+       case Xkey_4:
+       case Xkey_5:
+       case Xkey_6:
+       case Xkey_7:
+       case Xkey_8:
+       case Xbumper:
+       case Xswitch:
+       case Xround_wall_1:
+       case Xround_wall_2:
+       case Xround_wall_3:
+       case Xround_wall_4:
+         if (RANDOM & 1)
+         {
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Yspring_eB;
+             Cave[y][x+1] = Yspring_e;
+             if (Cave[y+1][x] == Xbumper)
+               Cave[y+1][x] = XbumperB;
+             Next[y][x] = Xblank;
+
+#ifdef BAD_SPRING
+             Next[y][x+1] = Xspring_e;
+#else  
+             Next[y][x+1] = Xspring_pause;
+#endif
+
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Yspring_wB;
+             Cave[y][x-1] = Yspring_w;
+             if (Cave[y+1][x] == Xbumper)
+               Cave[y+1][x] = XbumperB;
+             Next[y][x] = Xblank;
+
+#ifdef BAD_SPRING
+             Next[y][x-1] = Xspring_w;
+#else
+             Next[y][x-1] = Xspring_pause;
+#endif
+
+             goto loop;
+           }
+         }
+         else
+         {
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Yspring_wB;
+             Cave[y][x-1] = Yspring_w;
+             if (Cave[y+1][x] == Xbumper)
+               Cave[y+1][x] = XbumperB;
+             Next[y][x] = Xblank;
+
+#ifdef BAD_SPRING
+             Next[y][x-1] = Xspring_w;
+#else
+             Next[y][x-1] = Xspring_pause;
+#endif
+
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Yspring_eB;
+             Cave[y][x+1] = Yspring_e;
+             if (Cave[y+1][x] == Xbumper)
+               Cave[y+1][x] = XbumperB;
+             Next[y][x] = Xblank;
+
+#ifdef BAD_SPRING
+             Next[y][x+1] = Xspring_e;
+#else
+             Next[y][x+1] = Xspring_pause;
+#endif
+
+             goto loop;
+           }
+         }
+
+       default:
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xspring_pause:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yspring_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yspring_sB;
+         Cave[y+1][x] = Yspring_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xspring_fall;
+         goto loop;
+
+       default:
+         Cave[y][x] = Xspring;
+         Next[y][x] = Xspring;
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xspring_e:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yspring_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yspring_sB;
+         Cave[y+1][x] = Yspring_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xspring_fall;
+         goto loop;
+
+       case Xbumper:
+         Cave[y+1][x] = XbumperB;
+      }
+
+      switch (Cave[y][x+1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yspring_eB;
+         if (Cave[y-1][x+2] == Xblank)
+           Cave[y-1][x+2] = Yacid_splash_eB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Yalien_nB:
+       case Yalien_eB:
+       case Yalien_sB:
+       case Yalien_wB:
+         Cave[y][x] = Yspring_eB;
+         Cave[y][x+1] = Yspring_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xspring_e;
+         goto loop;
+
+       case Xalien:
+       case Xalien_pause:
+       case Yalien_n:
+       case Yalien_e:
+       case Yalien_s:
+       case Yalien_w:
+         Cave[y][x] = Yspring_kill_eB;
+         Cave[y][x+1] = Yspring_kill_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xspring_e;
+         play_element_sound(x, y, SAMPLE_slurp, Xalien);
+         score += lev.slurp_score;
+         goto loop;
+
+       case Xbumper:
+       case XbumperB:
+         Cave[y][x+1] = XbumperB;
+         Next[y][x] = Xspring_w;
+         play_element_sound(x, y, SAMPLE_spring, Xspring);
+         goto loop;
+
+       default:
+         Cave[y][x] = Xspring;
+         Next[y][x] = Xspring;
+         play_element_sound(x, y, SAMPLE_spring, Xspring);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xspring_w:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yspring_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yspring_sB;
+         Cave[y+1][x] = Yspring_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xspring_fall;
+         goto loop;
+
+       case Xbumper:
+         Cave[y+1][x] = XbumperB;
+      }
+
+      switch (Cave[y][x-1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yspring_wB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_eB;
+         if (Cave[y-1][x-2] == Xblank)
+           Cave[y-1][x-2] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Yalien_nB:
+       case Yalien_eB:
+       case Yalien_sB:
+       case Yalien_wB:
+         Cave[y][x] = Yspring_wB;
+         Cave[y][x-1] = Yspring_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xspring_w;
+         goto loop;
+
+       case Xalien:
+       case Xalien_pause:
+       case Yalien_n:
+       case Yalien_e:
+       case Yalien_s:
+       case Yalien_w:
+         Cave[y][x] = Yspring_kill_wB;
+         Cave[y][x-1] = Yspring_kill_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xspring_w;
+         play_element_sound(x, y, SAMPLE_slurp, Xalien);
+         score += lev.slurp_score;
+         goto loop;
+
+       case Xbumper:
+       case XbumperB:
+         Cave[y][x-1] = XbumperB;
+         Next[y][x] = Xspring_e;
+         play_element_sound(x, y, SAMPLE_spring, Xspring);
+         goto loop;
+
+       default:
+         Cave[y][x] = Xspring;
+         Next[y][x] = Xspring;
+         play_element_sound(x, y, SAMPLE_spring, Xspring);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xspring_fall:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yspring_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Zplayer:
+         Cave[y][x] = Yspring_sB;
+         Cave[y+1][x] = Yspring_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xspring_fall;
+         goto loop;
+
+       case Xbomb:
+       case Xbomb_pause:
+         Cave[y+1][x] = Ybomb_eat;
+         Next[y+1][x] = Znormal;
+         Boom[y][x-1] = Xblank;
+         Boom[y][x] = Xblank;
+         Boom[y][x+1] = Xblank;
+         Boom[y+1][x-1] = Xblank;
+         Boom[y+1][x] = Xblank;
+         Boom[y+1][x+1] = Xblank;
+         Boom[y+2][x-1] = Xblank;
+         Boom[y+2][x] = Xblank;
+         Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
+#endif
+         goto loop;
+
+       case Xbug_n:
+       case Xbug_e:
+       case Xbug_s:
+       case Xbug_w:
+       case Xbug_gon:
+       case Xbug_goe:
+       case Xbug_gos:
+       case Xbug_gow:
+         Cave[y][x] = Yspring_sB;
+         Cave[y+1][x] = Ybug_spring;
+         Next[y+1][x] = Znormal;
+         Boom[y][x-1] = Xemerald;
+         Boom[y][x] = Xemerald;
+         Boom[y][x+1] = Xemerald;
+         Boom[y+1][x-1] = Xemerald;
+         Boom[y+1][x] = Xdiamond;
+         Boom[y+1][x+1] = Xemerald;
+         Boom[y+2][x-1] = Xemerald;
+         Boom[y+2][x] = Xemerald;
+         Boom[y+2][x+1] = Xemerald;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
+#endif
+         score += lev.bug_score;
+         goto loop;
+
+       case Xtank_n:
+       case Xtank_e:
+       case Xtank_s:
+       case Xtank_w:
+       case Xtank_gon:
+       case Xtank_goe:
+       case Xtank_gos:
+       case Xtank_gow:
+         Cave[y][x] = Yspring_sB;
+         Cave[y+1][x] = Ytank_spring;
+         Next[y+1][x] = Znormal;
+         Boom[y][x-1] = Xblank;
+         Boom[y][x] = Xblank;
+         Boom[y][x+1] = Xblank;
+         Boom[y+1][x-1] = Xblank;
+         Boom[y+1][x] = Xblank;
+         Boom[y+1][x+1] = Xblank;
+         Boom[y+2][x-1] = Xblank;
+         Boom[y+2][x] = Xblank;
+         Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
+#endif
+         score += lev.tank_score;
+         goto loop;
+
+       case Xeater_n:
+       case Xeater_e:
+       case Xeater_s:
+       case Xeater_w:
+         Cave[y][x] = Yspring_sB;
+         Cave[y+1][x] = Yeater_spring;
+         Next[y+1][x] = Znormal;
+         Boom[y][x-1] = lev.eater_array[lev.eater_pos][0];
+         Boom[y][x] = lev.eater_array[lev.eater_pos][1];
+         Boom[y][x+1] = lev.eater_array[lev.eater_pos][2];
+         Boom[y+1][x-1] = lev.eater_array[lev.eater_pos][3];
+         Boom[y+1][x] = lev.eater_array[lev.eater_pos][4];
+         Boom[y+1][x+1] = lev.eater_array[lev.eater_pos][5];
+         Boom[y+2][x-1] = lev.eater_array[lev.eater_pos][6];
+         Boom[y+2][x] = lev.eater_array[lev.eater_pos][7];
+         Boom[y+2][x+1] = lev.eater_array[lev.eater_pos][8];
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
+#endif
+         lev.eater_pos = (lev.eater_pos + 1) & 7;
+         score += lev.eater_score;
+         goto loop;
+
+       case Xalien:
+       case Xalien_pause:
+         Cave[y][x] = Yspring_sB;
+         Cave[y+1][x] = Yalien_spring;
+         Next[y+1][x] = Znormal;
+         Boom[y][x-1] = Xblank;
+         Boom[y][x] = Xblank;
+         Boom[y][x+1] = Xblank;
+         Boom[y+1][x-1] = Xblank;
+         Boom[y+1][x] = Xblank;
+         Boom[y+1][x+1] = Xblank;
+         Boom[y+2][x-1] = Xblank;
+         Boom[y+2][x] = Xblank;
+         Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
+#endif
+         score += lev.alien_score;
+         goto loop;
+
+       default:
+         Cave[y][x] = Xspring;
+         Next[y][x] = Xspring;
+         play_element_sound(x, y, SAMPLE_spring, Xspring);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xeater_n:
+      if (Cave[y][x+1] == Xdiamond)
+      {
+       Cave[y][x+1] = Ydiamond_eat;
+       Next[y][x+1] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y+1][x] == Xdiamond)
+      {
+       Cave[y+1][x] = Ydiamond_eat;
+       Next[y+1][x] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y][x-1] == Xdiamond)
+      {
+       Cave[y][x-1] = Ydiamond_eat;
+       Next[y][x-1] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y-1][x] == Xdiamond)
+      {
+       Cave[y-1][x] = Ydiamond_eat;
+       Next[y-1][x] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      switch (Cave[y-1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yeater_nB;
+         if (Cave[y-2][x+1] == Xblank)
+           Cave[y-2][x+1] = Yacid_splash_eB;
+         if (Cave[y-2][x-1] == Xblank)
+           Cave[y-2][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Yeater_nB;
+         Cave[y-1][x] = Yeater_n;
+         Next[y][x] = Xblank;
+         Next[y-1][x] = Xeater_n;
+         goto loop;
+
+       default:
+         Next[y][x] = RANDOM & 1 ? Xeater_e : Xeater_w;
+         play_element_sound(x, y, SAMPLE_eater, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xeater_e:
+      if (Cave[y+1][x] == Xdiamond)
+      {
+       Cave[y+1][x] = Ydiamond_eat;
+       Next[y+1][x] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y][x-1] == Xdiamond)
+      {
+       Cave[y][x-1] = Ydiamond_eat;
+       Next[y][x-1] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y-1][x] == Xdiamond)
+      {
+       Cave[y-1][x] = Ydiamond_eat;
+       Next[y-1][x] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y][x+1] == Xdiamond)
+      {
+       Cave[y][x+1] = Ydiamond_eat;
+       Next[y][x+1] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      switch (Cave[y][x+1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yeater_eB;
+         if (Cave[y-1][x+2] == Xblank)
+           Cave[y-1][x+2] = Yacid_splash_eB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Yeater_eB;
+         Cave[y][x+1] = Yeater_e;
+         Next[y][x] = Xblank;
+         Next[y][x+1] = Xeater_e;
+         goto loop;
+
+       default:
+         Next[y][x] = RANDOM & 1 ? Xeater_n : Xeater_s;
+         play_element_sound(x, y, SAMPLE_eater, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xeater_s:
+      if (Cave[y][x-1] == Xdiamond)
+      {
+       Cave[y][x-1] = Ydiamond_eat;
+       Next[y][x-1] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y-1][x] == Xdiamond)
+      {
+       Cave[y-1][x] = Ydiamond_eat;
+       Next[y-1][x] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y][x+1] == Xdiamond)
+      {
+       Cave[y][x+1] = Ydiamond_eat;
+       Next[y][x+1] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y+1][x] == Xdiamond)
+      {
+       Cave[y+1][x] = Ydiamond_eat;
+       Next[y+1][x] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yeater_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Yeater_sB;
+         Cave[y+1][x] = Yeater_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xeater_s;
+         goto loop;
+
+       default:
+         Next[y][x] = RANDOM & 1 ? Xeater_e : Xeater_w;
+         play_element_sound(x, y, SAMPLE_eater, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xeater_w:
+      if (Cave[y-1][x] == Xdiamond)
+      {
+       Cave[y-1][x] = Ydiamond_eat;
+       Next[y-1][x] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y][x+1] == Xdiamond)
+      {
+       Cave[y][x+1] = Ydiamond_eat;
+       Next[y][x+1] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y+1][x] == Xdiamond)
+      {
+       Cave[y+1][x] = Ydiamond_eat;
+       Next[y+1][x] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      if (Cave[y][x-1] == Xdiamond)
+      {
+       Cave[y][x-1] = Ydiamond_eat;
+       Next[y][x-1] = Xblank;
+       play_element_sound(x, y, SAMPLE_eater_eat, element);
+       goto loop;
+      }
+
+      switch (Cave[y][x-1])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yeater_wB;
+         if (Cave[y-1][x] == Xblank)
+           Cave[y-1][x] = Yacid_splash_eB;
+         if (Cave[y-1][x-2] == Xblank)
+           Cave[y-1][x-2] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Yeater_wB;
+         Cave[y][x-1] = Yeater_w;
+         Next[y][x] = Xblank;
+         Next[y][x-1] = Xeater_w;
+         goto loop;
+
+       default:
+         Next[y][x] = RANDOM & 1 ? Xeater_n : Xeater_s;
+         play_element_sound(x, y, SAMPLE_eater, element);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xalien:
+
+      if (lev.wheel_cnt)
+      {
+       dx = lev.wheel_x;
+       dy = lev.wheel_y;
+      }
+      else
+      {
+       set_nearest_player_xy(x, y, &dx, &dy);
+      }
+
+      if (RANDOM & 1)
+      {
+       if (y > dy)
+       {
+         switch (Cave[y-1][x])
+         {
+           case Xacid_1:
+           case Xacid_2:
+           case Xacid_3:
+           case Xacid_4:
+           case Xacid_5:
+           case Xacid_6:
+           case Xacid_7:
+           case Xacid_8:
+             Cave[y][x] = Yalien_nB;
+             if (Cave[y-2][x+1] == Xblank)
+               Cave[y-2][x+1] = Yacid_splash_eB;
+             if (Cave[y-2][x-1] == Xblank)
+               Cave[y-2][x-1] = Yacid_splash_wB;
+             Next[y][x] = Xblank;
+             play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+             goto loop;
+
+           case Xblank:
+           case Yacid_splash_eB:
+           case Yacid_splash_wB:
+           case Xplant:
+           case Yplant:
+           case Zplayer:
+             Cave[y][x] = Yalien_nB;
+             Cave[y-1][x] = Yalien_n;
+             Next[y][x] = Xblank;
+             Next[y-1][x] = Xalien_pause;
+             play_element_sound(x, y, SAMPLE_alien, Xalien);
+             goto loop;
+         }
+       }
+       else if (y < dy)
+       {
+         switch (Cave[y+1][x])
+         {
+           case Xacid_1:
+           case Xacid_2:
+           case Xacid_3:
+           case Xacid_4:
+           case Xacid_5:
+           case Xacid_6:
+           case Xacid_7:
+           case Xacid_8:
+             Cave[y][x] = Yalien_sB;
+             Next[y][x] = Xblank;
+             if (Cave[y][x+1] == Xblank)
+               Cave[y][x+1] = Yacid_splash_eB;
+             if (Cave[y][x-1] == Xblank)
+               Cave[y][x-1] = Yacid_splash_wB;
+             play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+             goto loop;
+
+           case Xblank:
+           case Yacid_splash_eB:
+           case Yacid_splash_wB:
+           case Xplant:
+           case Yplant:
+           case Zplayer:
+             Cave[y][x] = Yalien_sB;
+             Cave[y+1][x] = Yalien_s;
+             Next[y][x] = Xblank;
+             Next[y+1][x] = Xalien_pause;
+             play_element_sound(x, y, SAMPLE_alien, Xalien);
+             goto loop;
+         }
+       }
+      }
+      else
+      {
+       if (x < dx)
+       {
+         switch (Cave[y][x+1])
+         {
+           case Xacid_1:
+           case Xacid_2:
+           case Xacid_3:
+           case Xacid_4:
+           case Xacid_5:
+           case Xacid_6:
+           case Xacid_7:
+           case Xacid_8:
+             Cave[y][x] = Yalien_eB;
+             if (Cave[y-1][x+2] == Xblank)
+               Cave[y-1][x+2] = Yacid_splash_eB;
+             if (Cave[y-1][x] == Xblank)
+               Cave[y-1][x] = Yacid_splash_wB;
+             Next[y][x] = Xblank;
+             play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+             goto loop;
+
+           case Xblank:
+           case Yacid_splash_eB:
+           case Yacid_splash_wB:
+           case Xplant:
+           case Yplant:
+           case Zplayer:
+             Cave[y][x] = Yalien_eB;
+             Cave[y][x+1] = Yalien_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xalien_pause;
+             play_element_sound(x, y, SAMPLE_alien, Xalien);
+             goto loop;
+         }
+       }
+       else if (x > dx)
+       {
+         switch (Cave[y][x-1])
+         {
+           case Xacid_1:
+           case Xacid_2:
+           case Xacid_3:
+           case Xacid_4:
+           case Xacid_5:
+           case Xacid_6:
+           case Xacid_7:
+           case Xacid_8:
+             Cave[y][x] = Yalien_wB;
+             if (Cave[y-1][x] == Xblank)
+               Cave[y-1][x] = Yacid_splash_eB;
+             if (Cave[y-1][x-2] == Xblank)
+               Cave[y-1][x-2] = Yacid_splash_wB;
+             Next[y][x] = Xblank;
+             play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+             goto loop;
+
+           case Xblank:
+           case Yacid_splash_eB:
+           case Yacid_splash_wB:
+           case Xplant:
+           case Yplant:
+           case Zplayer:
+             Cave[y][x] = Yalien_wB;
+             Cave[y][x-1] = Yalien_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xalien_pause;
+             play_element_sound(x, y, SAMPLE_alien, Xalien);
+             goto loop;
+         }
+       }
+      }
+
+      goto loop;
+
+    case Xalien_pause:
+      Next[y][x] = Xalien;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xemerald:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yemerald_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yemerald_sB;
+         Cave[y+1][x] = Yemerald_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xemerald_fall;
+         goto loop;
+
+       case Xspring:
+       case Xspring_pause:
+       case Xspring_e:
+       case Xspring_w:
+       case Xandroid:
+       case Xandroid_1_n:
+       case Xandroid_2_n:
+       case Xandroid_1_e:
+       case Xandroid_2_e:
+       case Xandroid_1_s:
+       case Xandroid_2_s:
+       case Xandroid_1_w:
+       case Xandroid_2_w:
+       case Xstone:
+       case Xstone_pause:
+       case Xemerald:
+       case Xemerald_pause:
+       case Xdiamond:
+       case Xdiamond_pause:
+       case Xbomb:
+       case Xbomb_pause:
+       case Xballoon:
+       case Xacid_ne:
+       case Xacid_nw:
+       case Xball_1:
+       case Xball_2:
+       case Xnut:
+       case Xnut_pause:
+       case Xgrow_ns:
+       case Xgrow_ew:
+       case Xwonderwall:
+       case Xkey_1:
+       case Xkey_2:
+       case Xkey_3:
+       case Xkey_4:
+       case Xkey_5:
+       case Xkey_6:
+       case Xkey_7:
+       case Xkey_8:
+       case Xbumper:
+       case Xswitch:
+       case Xsteel_1:
+       case Xsteel_2:
+       case Xsteel_3:
+       case Xsteel_4:
+       case Xwall_1:
+       case Xwall_2:
+       case Xwall_3:
+       case Xwall_4:
+       case Xround_wall_1:
+       case Xround_wall_2:
+       case Xround_wall_3:
+       case Xround_wall_4:
+         if (RANDOM & 1)
+         {
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Yemerald_eB;
+             Cave[y][x+1] = Yemerald_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xemerald_pause;
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Yemerald_wB;
+             Cave[y][x-1] = Yemerald_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xemerald_pause;
+             goto loop;
+           }
+         }
+         else
+         {
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Yemerald_wB;
+             Cave[y][x-1] = Yemerald_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xemerald_pause;
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Yemerald_eB;
+             Cave[y][x+1] = Yemerald_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xemerald_pause;
+             goto loop;
+           }
+         }
+
+        default:
+         if (++lev.shine_cnt > 50)
+         {
+           lev.shine_cnt = RANDOM & 7;
+           Cave[y][x] = Xemerald_shine;
+         }
+
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xemerald_pause:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yemerald_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Yemerald_sB;
+         Cave[y+1][x] = Yemerald_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xemerald_fall;
+         goto loop;
+
+       default:
+         Cave[y][x] = Xemerald;
+         Next[y][x] = Xemerald;
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xemerald_fall:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Yemerald_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Zplayer:
+         Cave[y][x] = Yemerald_sB;
+         Cave[y+1][x] = Yemerald_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xemerald_fall;
+         goto loop;
+
+       case Xwonderwall:
+         if (lev.wonderwall_time)
+         {
+           lev.wonderwall_state = 1;
+           Cave[y][x] = Yemerald_sB;
+           if (tab_blank[Cave[y+2][x]])
+           {
+             Cave[y+2][x] = Ydiamond_s;
+             Next[y+2][x] = Xdiamond_fall;
+           }
+
+           Next[y][x] = Xblank;
+           play_element_sound(x, y, SAMPLE_wonderfall, Xwonderwall);
+           goto loop;
+         }
+
+       default:
+         Cave[y][x] = Xemerald;
+         Next[y][x] = Xemerald;
+         play_element_sound(x, y, SAMPLE_diamond, Xemerald);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xdiamond:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ydiamond_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Ydiamond_sB;
+         Cave[y+1][x] = Ydiamond_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xdiamond_fall;
+         goto loop;
+
+       case Xspring:
+       case Xspring_pause:
+       case Xspring_e:
+       case Xspring_w:
+       case Xandroid:
+       case Xandroid_1_n:
+       case Xandroid_2_n:
+       case Xandroid_1_e:
+       case Xandroid_2_e:
+       case Xandroid_1_s:
+       case Xandroid_2_s:
+       case Xandroid_1_w:
+       case Xandroid_2_w:
+       case Xstone:
+       case Xstone_pause:
+       case Xemerald:
+       case Xemerald_pause:
+       case Xdiamond:
+       case Xdiamond_pause:
+       case Xbomb:
+       case Xbomb_pause:
+       case Xballoon:
+       case Xacid_ne:
+       case Xacid_nw:
+       case Xball_1:
+       case Xball_2:
+       case Xnut:
+       case Xnut_pause:
+       case Xgrow_ns:
+       case Xgrow_ew:
+       case Xwonderwall:
+       case Xkey_1:
+       case Xkey_2:
+       case Xkey_3:
+       case Xkey_4:
+       case Xkey_5:
+       case Xkey_6:
+       case Xkey_7:
+       case Xkey_8:
+       case Xbumper:
+       case Xswitch:
+       case Xsteel_1:
+       case Xsteel_2:
+       case Xsteel_3:
+       case Xsteel_4:
+       case Xwall_1:
+       case Xwall_2:
+       case Xwall_3:
+       case Xwall_4:
+       case Xround_wall_1:
+       case Xround_wall_2:
+       case Xround_wall_3:
+       case Xround_wall_4:
+         if (RANDOM & 1)
+         {
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Ydiamond_eB;
+             Cave[y][x+1] = Ydiamond_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xdiamond_pause;
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Ydiamond_wB;
+             Cave[y][x-1] = Ydiamond_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xdiamond_pause;
+             goto loop;
+           }
+         }
+         else
+         {
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Ydiamond_wB;
+             Cave[y][x-1] = Ydiamond_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xdiamond_pause;
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Ydiamond_eB;
+             Cave[y][x+1] = Ydiamond_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xdiamond_pause;
+             goto loop;
+           }
+         }
+
+       default:
+         if (++lev.shine_cnt > 50)
+         {
+           lev.shine_cnt = RANDOM & 7;
+           Cave[y][x] = Xdiamond_shine;
+         }
+
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xdiamond_pause:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ydiamond_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Ydiamond_sB;
+         Cave[y+1][x] = Ydiamond_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xdiamond_fall;
+         goto loop;
+
+       default:
+         Cave[y][x] = Xdiamond;
+         Next[y][x] = Xdiamond;
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xdiamond_fall:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ydiamond_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Zplayer:
+         Cave[y][x] = Ydiamond_sB;
+         Cave[y+1][x] = Ydiamond_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xdiamond_fall;
+         goto loop;
+
+       case Xwonderwall:
+         if (lev.wonderwall_time)
+         {
+           lev.wonderwall_state = 1;
+           Cave[y][x] = Ydiamond_sB;
+           if (tab_blank[Cave[y+2][x]])
+           {
+             Cave[y+2][x] = Ystone_s;
+             Next[y+2][x] = Xstone_fall;
+           }
+
+           Next[y][x] = Xblank;
+           play_element_sound(x, y, SAMPLE_wonderfall, Xwonderwall);
+           goto loop;
+         }
+
+       default:
+         Cave[y][x] = Xdiamond;
+         Next[y][x] = Xdiamond;
+         play_element_sound(x, y, SAMPLE_diamond, Xdiamond);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xdrip_fall:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ydrip_s1B;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xdrip_stretchB;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+       case Xplant:
+       case Yplant:
+       case Zplayer:
+         Cave[y][x] = Ydrip_s1B;
+         Cave[y+1][x] = Ydrip_s1;
+         Next[y][x] = Xdrip_stretchB;
+         Next[y+1][x] = Xdrip_stretch;
+         goto loop;
+
+       default:
+         switch (RANDOM & 7)
+         {
+           case 0:
+             temp = Xamoeba_1;
+             break;
+
+           case 1:
+             temp = Xamoeba_2;
+             break;
+
+           case 2:
+             temp = Xamoeba_3;
+             break;
+
+           case 3:
+             temp = Xamoeba_4;
+             break;
+
+           case 4:
+             temp = Xamoeba_5;
+             break;
+
+           case 5:
+             temp = Xamoeba_6;
+             break;
+
+           case 6:
+             temp = Xamoeba_7;
+             break;
+
+           case 7:
+             temp = Xamoeba_8;
+             break;
+         }
+
+         Cave[y][x] = temp;
+         Next[y][x] = temp;
+         play_element_sound(x, y, SAMPLE_drip, Xdrip_fall);
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xdrip_stretch:
+      Cave[y][x] = Ydrip_s2;
+      Next[y][x] = Xdrip_fall;
+      goto loop;
+
+    case Xdrip_stretchB:
+      Cave[y][x] = Ydrip_s2B;
+      Next[y][x] = Xblank;
+      goto loop;
+
+    case Xdrip_eat:
+      Next[y][x] = Xdrip_fall;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xbomb:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ybomb_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Ybomb_sB;
+         Cave[y+1][x] = Ybomb_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xbomb_fall;
+         goto loop;
+
+       case Xspring:
+       case Xspring_pause:
+       case Xspring_e:
+       case Xspring_w:
+       case Xandroid:
+       case Xandroid_1_n:
+       case Xandroid_2_n:
+       case Xandroid_1_e:
+       case Xandroid_2_e:
+       case Xandroid_1_s:
+       case Xandroid_2_s:
+       case Xandroid_1_w:
+       case Xandroid_2_w:
+       case Xstone:
+       case Xstone_pause:
+       case Xemerald:
+       case Xemerald_pause:
+       case Xdiamond:
+       case Xdiamond_pause:
+       case Xbomb:
+       case Xbomb_pause:
+       case Xballoon:
+       case Xacid_ne:
+       case Xacid_nw:
+       case Xball_1:
+       case Xball_2:
+       case Xnut:
+       case Xnut_pause:
+       case Xgrow_ns:
+       case Xgrow_ew:
+       case Xkey_1:
+       case Xkey_2:
+       case Xkey_3:
+       case Xkey_4:
+       case Xkey_5:
+       case Xkey_6:
+       case Xkey_7:
+       case Xkey_8:
+       case Xbumper:
+       case Xswitch:
+       case Xround_wall_1:
+       case Xround_wall_2:
+       case Xround_wall_3:
+       case Xround_wall_4:
+         if (RANDOM & 1)
+         {
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Ybomb_eB;
+             Cave[y][x+1] = Ybomb_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xbomb_pause;
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Ybomb_wB;
+             Cave[y][x-1] = Ybomb_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xbomb_pause;
+             goto loop;
+           }
+         }
+         else
+         {
+           if (tab_blank[Cave[y][x-1]] && tab_acid[Cave[y+1][x-1]])
+           {
+             Cave[y][x] = Ybomb_wB;
+             Cave[y][x-1] = Ybomb_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xbomb_pause;
+             goto loop;
+           }
+
+           if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
+           {
+             Cave[y][x] = Ybomb_eB;
+             Cave[y][x+1] = Ybomb_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xbomb_pause;
+             goto loop;
+           }
+         }
+
+       default:
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xbomb_pause:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ybomb_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Ybomb_sB;
+         Cave[y+1][x] = Ybomb_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xbomb_fall;
+         goto loop;
+
+       default:
+         Cave[y][x] = Xbomb;
+         Next[y][x] = Xbomb;
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xbomb_fall:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Ybomb_sB;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xblank;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Ybomb_sB;
+         Cave[y+1][x] = Ybomb_s;
+         Next[y][x] = Xblank;
+         Next[y+1][x] = Xbomb_fall;
+         goto loop;
+
+       default:
+         Cave[y][x] = Ybomb_eat;
+         Next[y][x] = Znormal;
+         Boom[y-1][x-1] = Xblank;
+         Boom[y-1][x] = Xblank;
+         Boom[y-1][x+1] = Xblank;
+         Boom[y][x-1] = Xblank;
+         Boom[y][x] = Xblank;
+         Boom[y][x+1] = Xblank;
+         Boom[y+1][x-1] = Xblank;
+         Boom[y+1][x] = Xblank;
+         Boom[y+1][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SAMPLE_boom, element);
+#endif
+         goto loop;
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xballoon:
+      if (lev.wind_cnt == 0)
+       goto loop;
+
+      switch (lev.wind_direction)
+      {
+       case 0: /* north */
+         switch (Cave[y-1][x])
+         {
+           case Xacid_1:
+           case Xacid_2:
+           case Xacid_3:
+           case Xacid_4:
+           case Xacid_5:
+           case Xacid_6:
+           case Xacid_7:
+           case Xacid_8:
+             Cave[y][x] = Yballoon_nB;
+             if (Cave[y-2][x+1] == Xblank)
+               Cave[y-2][x+1] = Yacid_splash_eB;
+             if (Cave[y-2][x-1] == Xblank)
+               Cave[y-2][x-1] = Yacid_splash_wB;
+             Next[y][x] = Xblank;
+             play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+             goto loop;
+
+           case Xblank:
+           case Yacid_splash_eB:
+           case Yacid_splash_wB:
+             Cave[y][x] = Yballoon_nB;
+             Cave[y-1][x] = Yballoon_n;
+             Next[y][x] = Xblank;
+             Next[y-1][x] = Xballoon;
+             goto loop;
+
+           default:
+             goto loop;
+         }
+
+        case 1: /* east */
+         switch (Cave[y][x+1])
+         {
+           case Xacid_1:
+           case Xacid_2:
+           case Xacid_3:
+           case Xacid_4:
+           case Xacid_5:
+           case Xacid_6:
+           case Xacid_7:
+           case Xacid_8:
+             Cave[y][x] = Yballoon_eB;
+             if (Cave[y-1][x+2] == Xblank)
+               Cave[y-1][x+2] = Yacid_splash_eB;
+             if (Cave[y-1][x] == Xblank)
+               Cave[y-1][x] = Yacid_splash_wB;
+             Next[y][x] = Xblank;
+             play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+             goto loop;
+
+           case Xblank:
+           case Yacid_splash_eB:
+           case Yacid_splash_wB:
+             Cave[y][x] = Yballoon_eB;
+             Cave[y][x+1] = Yballoon_e;
+             Next[y][x] = Xblank;
+             Next[y][x+1] = Xballoon;
+             goto loop;
+
+           default:
+             goto loop;
+         }
+
+        case 2: /* south */
+         switch (Cave[y+1][x])
+         {
+           case Xacid_1:
+           case Xacid_2:
+           case Xacid_3:
+           case Xacid_4:
+           case Xacid_5:
+           case Xacid_6:
+           case Xacid_7:
+           case Xacid_8:
+             Cave[y][x] = Yballoon_sB;
+             if (Cave[y][x+1] == Xblank)
+               Cave[y][x+1] = Yacid_splash_eB;
+             if (Cave[y][x-1] == Xblank)
+               Cave[y][x-1] = Yacid_splash_wB;
+             Next[y][x] = Xblank;
+             play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+             goto loop;
+
+           case Xblank:
+           case Yacid_splash_eB:
+           case Yacid_splash_wB:
+             Cave[y][x] = Yballoon_sB;
+             Cave[y+1][x] = Yballoon_s;
+             Next[y][x] = Xblank;
+             Next[y+1][x] = Xballoon;
+             goto loop;
+
+           default:
+             goto loop;
+         }
+
+        case 3: /* west */
+         switch (Cave[y][x-1])
+         {
+           case Xacid_1:
+           case Xacid_2:
+           case Xacid_3:
+           case Xacid_4:
+           case Xacid_5:
+           case Xacid_6:
+           case Xacid_7:
+           case Xacid_8:
+             Cave[y][x] = Yballoon_wB;
+             if (Cave[y-1][x] == Xblank)
+               Cave[y-1][x] = Yacid_splash_eB;
+             if (Cave[y-1][x-2] == Xblank)
+               Cave[y-1][x-2] = Yacid_splash_wB;
+             Next[y][x] = Xblank;
+             play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+             goto loop;
+
+           case Xblank:
+           case Yacid_splash_eB:
+           case Yacid_splash_wB:
+             Cave[y][x] = Yballoon_wB;
+             Cave[y][x-1] = Yballoon_w;
+             Next[y][x] = Xblank;
+             Next[y][x-1] = Xballoon;
+             goto loop;
+
+           default:
+             goto loop;
+         }
+      }
+
+    /* --------------------------------------------------------------------- */
+
+    case Xacid_1:
+      Next[y][x] = Xacid_2;
+      goto loop;
+
+    case Xacid_2:
+      Next[y][x] = Xacid_3;
+      goto loop;
+
+    case Xacid_3:
+      Next[y][x] = Xacid_4;
+      goto loop;
+
+    case Xacid_4:
+      Next[y][x] = Xacid_5;
+      goto loop;
+
+    case Xacid_5:
+      Next[y][x] = Xacid_6;
+      goto loop;
+
+    case Xacid_6:
+      Next[y][x] = Xacid_7;
+      goto loop;
+
+    case Xacid_7:
+      Next[y][x] = Xacid_8;
+      goto loop;
+
+    case Xacid_8:
+      Next[y][x] = Xacid_1;
+      goto loop;
+
+    case Xfake_acid_1:
+      Next[y][x] = Xfake_acid_2;
+      goto loop;
+
+    case Xfake_acid_2:
+      Next[y][x] = Xfake_acid_3;
+      goto loop;
+
+    case Xfake_acid_3:
+      Next[y][x] = Xfake_acid_4;
+      goto loop;
+
+    case Xfake_acid_4:
+      Next[y][x] = Xfake_acid_5;
+      goto loop;
+
+    case Xfake_acid_5:
+      Next[y][x] = Xfake_acid_6;
+      goto loop;
+
+    case Xfake_acid_6:
+      Next[y][x] = Xfake_acid_7;
+      goto loop;
+
+    case Xfake_acid_7:
+      Next[y][x] = Xfake_acid_8;
+      goto loop;
+
+    case Xfake_acid_8:
+      Next[y][x] = Xfake_acid_1;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xball_1:
+      if (lev.ball_state == 0)
+       goto loop;
+
+      Cave[y][x] = Xball_1B;
+      Next[y][x] = Xball_2;
+      if (lev.ball_cnt)
+       goto loop;
+
+      goto ball_common;
+
+    case Xball_2:
+      if (lev.ball_state == 0)
+       goto loop;
+
+      Cave[y][x] = Xball_2B;
+      Next[y][x] = Xball_1;
+      if (lev.ball_cnt)
+       goto loop;
+
+      goto ball_common;
+
+    ball_common:
+
+      play_element_sound(x, y, SAMPLE_ball, element);
+      if (lev.ball_random)
+      {
+       switch (RANDOM & 7)
+       {
+         case 0:
+           if (lev.ball_array[lev.ball_pos][0] != Xblank &&
+               tab_blank[Cave[y-1][x-1]])
+           {
+             Cave[y-1][x-1] = Yball_eat;
+             Next[y-1][x-1] = lev.ball_array[lev.ball_pos][0];
+           }
+           break;
+
+         case 1:
+           if (lev.ball_array[lev.ball_pos][1] != Xblank &&
+               tab_blank[Cave[y-1][x]])
+           {
+             Cave[y-1][x] = Yball_eat;
+             Next[y-1][x] = lev.ball_array[lev.ball_pos][1];
+           }
+           break;
+
+         case 2:
+           if (lev.ball_array[lev.ball_pos][2] != Xblank &&
+               tab_blank[Cave[y-1][x+1]])
+           {
+             Cave[y-1][x+1] = Yball_eat;
+             Next[y-1][x+1] = lev.ball_array[lev.ball_pos][2];
+           }
+           break;
+
+         case 3:
+           if (lev.ball_array[lev.ball_pos][3] != Xblank &&
+               tab_blank[Cave[y][x-1]])
+           {
+             Cave[y][x-1] = Yball_eat;
+             Next[y][x-1] = lev.ball_array[lev.ball_pos][3];
+           }
+           break;
+
+         case 4:
+           if (lev.ball_array[lev.ball_pos][4] != Xblank &&
+               tab_blank[Cave[y][x+1]])
+           {
+             Cave[y][x+1] = Yball_eat;
+             Next[y][x+1] = lev.ball_array[lev.ball_pos][4];
+           }
+           break;
+
+         case 5:
+           if (lev.ball_array[lev.ball_pos][5] != Xblank &&
+               tab_blank[Cave[y+1][x-1]])
+           {
+             Cave[y+1][x-1] = Yball_eat;
+             Next[y+1][x-1] = lev.ball_array[lev.ball_pos][5];
+           }
+           break;
+
+         case 6:
+           if (lev.ball_array[lev.ball_pos][6] != Xblank &&
+               tab_blank[Cave[y+1][x]])
+           {
+             Cave[y+1][x] = Yball_eat;
+             Next[y+1][x] = lev.ball_array[lev.ball_pos][6];
+           }
+           break;
+
+         case 7:
+           if (lev.ball_array[lev.ball_pos][7] != Xblank &&
+               tab_blank[Cave[y+1][x+1]])
+           {
+             Cave[y+1][x+1] = Yball_eat;
+             Next[y+1][x+1] = lev.ball_array[lev.ball_pos][7];
+           }
+           break;
+       }
+      }
+      else
+      {
+       if (lev.ball_array[lev.ball_pos][0] != Xblank &&
+           tab_blank[Cave[y-1][x-1]])
+       {
+         Cave[y-1][x-1] = Yball_eat;
+         Next[y-1][x-1] = lev.ball_array[lev.ball_pos][0];
+       }
+
+       if (lev.ball_array[lev.ball_pos][1] != Xblank &&
+           tab_blank[Cave[y-1][x]])
+       {
+         Cave[y-1][x] = Yball_eat;
+         Next[y-1][x] = lev.ball_array[lev.ball_pos][1];
+       }
+
+       if (lev.ball_array[lev.ball_pos][2] != Xblank &&
+           tab_blank[Cave[y-1][x+1]])
+       {
+         Cave[y-1][x+1] = Yball_eat;
+         Next[y-1][x+1] = lev.ball_array[lev.ball_pos][2];
+       }
+
+       if (lev.ball_array[lev.ball_pos][3] != Xblank &&
+           tab_blank[Cave[y][x-1]])
+       {
+         Cave[y][x-1] = Yball_eat;
+         Next[y][x-1] = lev.ball_array[lev.ball_pos][3];
+       }
+
+       if (lev.ball_array[lev.ball_pos][4] != Xblank &&
+           tab_blank[Cave[y][x+1]])
+       {
+         Cave[y][x+1] = Yball_eat;
+         Next[y][x+1] = lev.ball_array[lev.ball_pos][4];
+       }
+
+       if (lev.ball_array[lev.ball_pos][5] != Xblank &&
+           tab_blank[Cave[y+1][x-1]])
+       {
+         Cave[y+1][x-1] = Yball_eat;
+         Next[y+1][x-1] = lev.ball_array[lev.ball_pos][5];
+       }
+
+       if (lev.ball_array[lev.ball_pos][6] != Xblank &&
+           tab_blank[Cave[y+1][x]])
+       {
+         Cave[y+1][x] = Yball_eat;
+         Next[y+1][x] = lev.ball_array[lev.ball_pos][6];
+       }
+
+       if (lev.ball_array[lev.ball_pos][7] != Xblank &&
+           tab_blank[Cave[y+1][x+1]])
+       {
+         Cave[y+1][x+1] = Yball_eat;
+         Next[y+1][x+1] = lev.ball_array[lev.ball_pos][7];
+       }
+      }
+
+      lev.ball_pos = (lev.ball_pos + 1) % lev.num_ball_arrays;
+
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xgrow_ns:
+      if (tab_blank[Cave[y-1][x]])
+      {
+       Cave[y-1][x] = Ygrow_ns_eat;
+       Next[y-1][x] = Xgrow_ns;
+       play_element_sound(x, y, SAMPLE_grow, Xgrow_ns);
+      }
+
+      if (tab_blank[Cave[y+1][x]])
+      {
+       Cave[y+1][x] = Ygrow_ns_eat;
+       Next[y+1][x] = Xgrow_ns;
+       play_element_sound(x, y, SAMPLE_grow, Xgrow_ns);
+      }
+
+      goto loop;
+
+    case Xgrow_ew:
+      if (tab_blank[Cave[y][x+1]])
+      {
+       Cave[y][x+1] = Ygrow_ew_eat;
+       Next[y][x+1] = Xgrow_ew;
+       play_element_sound(x, y, SAMPLE_grow, Xgrow_ew);
+      }
+
+      if (tab_blank[Cave[y][x-1]])
+      {
+       Cave[y][x-1] = Ygrow_ew_eat;
+       Next[y][x-1] = Xgrow_ew;
+       play_element_sound(x, y, SAMPLE_grow, Xgrow_ew);
+      }
+
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xwonderwall:
+      if (lev.wonderwall_time && lev.wonderwall_state)
+      {
+       Cave[y][x] = XwonderwallB;
+       play_element_sound(x, y, SAMPLE_wonder, Xwonderwall);
+      }
+
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xexit:
+      if (lev.required > 0)
+       goto loop;
+
+      temp = RANDOM & 63;
+      if (temp < 21)
+      {
+       Cave[y][x] = Xexit_1;
+       Next[y][x] = Xexit_2;
+      }
+      else if (temp < 42)
+      {
+       Cave[y][x] = Xexit_2;
+       Next[y][x] = Xexit_3;
+      }
+      else
+      {
+       Cave[y][x] = Xexit_3;
+       Next[y][x] = Xexit_1;
+      }
+
+      play_element_sound(x, y, SAMPLE_exit_open, Xexit);
+
+      goto loop;
+
+    case Xexit_1:
+      Next[y][x] = Xexit_2;
+      goto loop;
+
+    case Xexit_2:
+      Next[y][x] = Xexit_3;
+      goto loop;
+
+    case Xexit_3:
+      Next[y][x] = Xexit_1;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xdynamite_1:
+      play_element_sound(x, y, SAMPLE_tick, Xdynamite_1);
+      Next[y][x] = Xdynamite_2;
+      goto loop;
+
+    case Xdynamite_2:
+      play_element_sound(x, y, SAMPLE_tick, Xdynamite_2);
+      Next[y][x] = Xdynamite_3;
+      goto loop;
+
+    case Xdynamite_3:
+      play_element_sound(x, y, SAMPLE_tick, Xdynamite_3);
+      Next[y][x] = Xdynamite_4;
+      goto loop;
+
+    case Xdynamite_4:
+      play_element_sound(x, y, SAMPLE_tick, Xdynamite_4);
+      Next[y][x] = Zdynamite;
+      Boom[y-1][x-1] = Xblank;
+      Boom[y-1][x] = Xblank;
+      Boom[y-1][x+1] = Xblank;
+      Boom[y][x-1] = Xblank;
+      Boom[y][x] = Xblank;
+      Boom[y][x+1] = Xblank;
+      Boom[y+1][x-1] = Xblank;
+      Boom[y+1][x] = Xblank;
+      Boom[y+1][x+1] = Xblank;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xwheel:
+      if (lev.wheel_cnt && x == lev.wheel_x && y == lev.wheel_y)
+       Cave[y][x] = XwheelB;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xswitch:
+      if (lev.ball_state)
+       Cave[y][x] = XswitchB;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xsand_stone:
+      switch (Cave[y+1][x])
+      {
+       case Xacid_1:
+       case Xacid_2:
+       case Xacid_3:
+       case Xacid_4:
+       case Xacid_5:
+       case Xacid_6:
+       case Xacid_7:
+       case Xacid_8:
+         Cave[y][x] = Xsand_stonesand_quickout_1;
+         if (Cave[y][x+1] == Xblank)
+           Cave[y][x+1] = Yacid_splash_eB;
+         if (Cave[y][x-1] == Xblank)
+           Cave[y][x-1] = Yacid_splash_wB;
+         Next[y][x] = Xsand_stonesand_quickout_2;
+         play_element_sound(x, y, SAMPLE_acid, Xacid_1);
+         goto loop;
+
+       case Xblank:
+       case Yacid_splash_eB:
+       case Yacid_splash_wB:
+         Cave[y][x] = Xsand_stonesand_quickout_1;
+         Cave[y+1][x] = Xsand_stoneout_1;
+         Next[y][x] = Xsand_stonesand_quickout_2;
+         Next[y+1][x] = Xsand_stoneout_2;
+         goto loop;
+
+       case Xsand:
+         Cave[y][x] = Xsand_stonesand_1;
+         Cave[y+1][x] = Xsand_sandstone_1;
+         Next[y][x] = Xsand_stonesand_2;
+         Next[y+1][x] = Xsand_sandstone_2;
+         goto loop;
+
+       default:
+         goto loop;
+      }
+
+    case Xsand_stonein_1:
+      Next[y][x] = Xsand_stonein_2;
+      goto loop;
+
+    case Xsand_stonein_2:
+      Next[y][x] = Xsand_stonein_3;
+      goto loop;
+
+    case Xsand_stonein_3:
+      Next[y][x] = Xsand_stonein_4;
+      goto loop;
+
+    case Xsand_stonein_4:
+      Next[y][x] = Xblank;
+      goto loop;
+
+    case Xsand_stonesand_1:
+      Next[y][x] = Xsand_stonesand_2;
+      goto loop;
+
+    case Xsand_stonesand_2:
+      Next[y][x] = Xsand_stonesand_3;
+      goto loop;
+
+    case Xsand_stonesand_3:
+      Next[y][x] = Xsand_stonesand_4;
+      goto loop;
+
+    case Xsand_stonesand_4:
+      Next[y][x] = Xsand;
+      goto loop;
+
+#if 1
+    case Xsand_stonesand_quickout_1:
+      Next[y][x] = Xsand_stonesand_quickout_2;
+      goto loop;
+
+    case Xsand_stonesand_quickout_2:
+      Next[y][x] = Xsand;
+      goto loop;
+#endif
+
+    case Xsand_stoneout_1:
+      Next[y][x] = Xsand_stoneout_2;
+      goto loop;
+
+    case Xsand_stoneout_2:
+      Next[y][x] = Xstone_fall;
+      goto loop;
+
+    case Xsand_sandstone_1:
+      Next[y][x] = Xsand_sandstone_2;
+      goto loop;
+
+    case Xsand_sandstone_2:
+      Next[y][x] = Xsand_sandstone_3;
+      goto loop;
+
+    case Xsand_sandstone_3:
+      Next[y][x] = Xsand_sandstone_4;
+      goto loop;
+
+    case Xsand_sandstone_4:
+      Next[y][x] = Xsand_stone;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xdripper:
+      if (lev.lenses_cnt)
+       Cave[y][x] = XdripperB;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xfake_blank:
+      if (lev.lenses_cnt)
+       Cave[y][x] = Xfake_blankB;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xfake_grass:
+      if (lev.magnify_cnt)
+       Cave[y][x] = Xfake_grassB;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xfake_door_1:
+      if (lev.magnify_cnt)
+       Cave[y][x] = Xdoor_1;
+      goto loop;
+
+    case Xfake_door_2:
+      if (lev.magnify_cnt)
+       Cave[y][x] = Xdoor_2;
+      goto loop;
+
+    case Xfake_door_3:
+      if (lev.magnify_cnt)
+       Cave[y][x] = Xdoor_3;
+      goto loop;
+
+    case Xfake_door_4:
+      if (lev.magnify_cnt)
+       Cave[y][x] = Xdoor_4;
+      goto loop;
+
+    case Xfake_door_5:
+      if (lev.magnify_cnt)
+       Cave[y][x] = Xdoor_5;
+      goto loop;
+
+    case Xfake_door_6:
+      if (lev.magnify_cnt)
+       Cave[y][x] = Xdoor_6;
+      goto loop;
+
+    case Xfake_door_7:
+      if (lev.magnify_cnt)
+       Cave[y][x] = Xdoor_7;
+      goto loop;
+
+    case Xfake_door_8:
+      if (lev.magnify_cnt)
+       Cave[y][x] = Xdoor_8;
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case Xboom_bug:
+      bug_boom:
+      Next[y][x] = Znormal;
+      Boom[y-1][x-1] = Xemerald;
+      Boom[y-1][x] = Xemerald;
+      Boom[y-1][x+1] = Xemerald;
+      Boom[y][x-1] = Xemerald;
+      Boom[y][x] = Xdiamond;
+      Boom[y][x+1] = Xemerald;
+      Boom[y+1][x-1] = Xemerald;
+      Boom[y+1][x] = Xemerald;
+      Boom[y+1][x+1] = Xemerald;
+#if PLAY_ELEMENT_SOUND
+      play_element_sound(x, y, SAMPLE_boom, element);
+#endif
+      goto loop;
+
+    case Xboom_bomb:
+
+    tank_boom:
+
+      Next[y][x] = Znormal;
+      Boom[y-1][x-1] = Xblank;
+      Boom[y-1][x] = Xblank;
+      Boom[y-1][x+1] = Xblank;
+      Boom[y][x-1] = Xblank;
+      Boom[y][x] = Xblank;
+      Boom[y][x+1] = Xblank;
+      Boom[y+1][x-1] = Xblank;
+      Boom[y+1][x] = Xblank;
+      Boom[y+1][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+      play_element_sound(x, y, SAMPLE_boom, element);
+#endif
+      goto loop;
+
+    case Xboom_android:
+#if PLAY_ELEMENT_SOUND
+      play_element_sound(x, y, SAMPLE_boom, Xandroid);
+#endif
+    case Xboom_1:
+      Next[y][x] = Xboom_2;
+#if !PLAY_ELEMENT_SOUND
+      if (x != lev.exit_x && y != lev.exit_y)
+       play_sound(x, y, SAMPLE_boom);
+      else
+       lev.exit_x = lev.exit_y = -1;
+#endif
+      goto loop;
+
+    case Xboom_2:
+      Next[y][x] = Boom[y][x];
+      goto loop;
+
+    /* --------------------------------------------------------------------- */
+
+    case ZBORDER:
+      if (++y < HEIGHT - 1)
+      {
+       x = 0;
+       cave_cache = Cave[y];
+       goto loop;
+      }
+
+      goto done;
+  }
+
+#undef RANDOM
+#undef PLAY
+#undef PLAY_FORCE
+
+ done:
+
+  if (ply[0].alive || ply[1].alive || ply[2].alive || ply[3].alive)
+    lev.score += score;                /* only add a score if someone is alive */
+
+  RandomEM = random;
+
+  {
+    void *temp = Cave;
+
+    /* triple buffering */
+    Cave = Next;
+    Next = Draw;
+    Draw = temp;
+  }
+}